TW201620048A - Manufacturing method of semiconductor device - Google Patents

Manufacturing method of semiconductor device Download PDF

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Publication number
TW201620048A
TW201620048A TW104126402A TW104126402A TW201620048A TW 201620048 A TW201620048 A TW 201620048A TW 104126402 A TW104126402 A TW 104126402A TW 104126402 A TW104126402 A TW 104126402A TW 201620048 A TW201620048 A TW 201620048A
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TW
Taiwan
Prior art keywords
mounting portion
wafer mounting
wafer
convex
semiconductor device
Prior art date
Application number
TW104126402A
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Chinese (zh)
Other versions
TWI663660B (en
Inventor
板東晃司
Original Assignee
瑞薩電子股份有限公司
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Publication of TW201620048A publication Critical patent/TW201620048A/en
Application granted granted Critical
Publication of TWI663660B publication Critical patent/TWI663660B/en

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    • H—ELECTRICITY
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    • H01L23/495—Lead-frames or other flat leads
    • H01L23/49575—Assemblies of semiconductor devices on lead frames
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    • H01L2224/838—Bonding techniques
    • H01L2224/83801—Soldering or alloying
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L2224/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
    • H01L2224/838—Bonding techniques
    • H01L2224/8385—Bonding techniques using a polymer adhesive, e.g. an adhesive based on silicone, epoxy, polyimide, polyester
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L2224/84—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a strap connector
    • H01L2224/848—Bonding techniques
    • H01L2224/84801—Soldering or alloying
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L2224/84—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a strap connector
    • H01L2224/848—Bonding techniques
    • H01L2224/8485—Bonding techniques using a polymer adhesive, e.g. an adhesive based on silicone, epoxy, polyimide, polyester
    • H—ELECTRICITY
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    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
    • H01L29/861—Diodes
    • H01L29/8611—Planar PN junction diodes
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    • H01L2924/11—Device type
    • H01L2924/13—Discrete devices, e.g. 3 terminal devices
    • H01L2924/1304—Transistor
    • H01L2924/1305—Bipolar Junction Transistor [BJT]
    • H01L2924/13055—Insulated gate bipolar transistor [IGBT]
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    • H01L2924/1304—Transistor
    • H01L2924/1306—Field-effect transistor [FET]
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Abstract

Provided is a method for manufacturing a semiconductor device that can achieve downsizing of the semiconductor device. Convex portions are pressed against side surfaces other than one side surface of one chip mounting portion, thereby fixing the chip mounting portion without forming a convex portion corresponding to the one side surface of the chip mounting portion. Likewise, convex portions are pressed against side surfaces other than one side surface of the other chip mounting portion, thereby fixing the other chip mounting portion without forming a convex portion corresponding to the one side surface of the other chip mounting portion.

Description

半導體裝置的製造方法 Semiconductor device manufacturing method

本發明是有關半導體裝置的製造技術，例如有關適用於作為反相器(inverter)的構成要素機能的半導體裝置的製造技術之有效的技術。 The present invention relates to a manufacturing technique of a semiconductor device, and is, for example, an effective technique for manufacturing a semiconductor device which is applied to a constituent element functioning as an inverter.

在日本特開2003-197664號公報(專利文獻1)中記載：在放熱構件設置凹部，在此凹部中插入銷，藉此從金屬模取出具有放熱構件的半導體裝置之技術。 Japanese Laid-Open Patent Publication No. 2003-197664 (Patent Document 1) discloses a technique in which a concave portion is provided in a heat releasing member, and a pin is inserted into the concave portion to take out a semiconductor device having a heat releasing member from the metal mold.

在日本特開2008-283138號公報(專利文獻2)中記載：以具有突起的模製金屬模來固定散熱器的技術。 Japanese Laid-Open Patent Publication No. 2008-283138 (Patent Document 2) discloses a technique of fixing a heat sink by a molding die having projections.

在日本特開平8-172145號公報(專利文獻3)記載：在散熱器(heat sink)的角落部(角部)形成定位用的切除部，將固定部推壓於此切除部，藉此實施散熱器的定位之技術。 Japanese Patent Publication No. 8-172145 (Patent Document 3) discloses that a cut-out portion for positioning is formed in a corner portion (corner portion) of a heat sink, and the fixing portion is pressed against the cut portion. The technology of positioning the radiator.

[先前技術文獻] [Previous Technical Literature] [專利文獻] [Patent Literature]

[專利文獻1]日本特開2003-197664號公報 [Patent Document 1] Japanese Patent Laid-Open Publication No. 2003-197664

[專利文獻2]日本特開2008-283138號公報 [Patent Document 2] Japanese Patent Laid-Open Publication No. 2008-283138

[專利文獻3]日本特開平8-172145號公報 [Patent Document 3] Japanese Patent Laid-Open No. Hei 8-172145

例如，在電動車或油電混合車等搭載有馬達。作為此馬達的一例，有永久磁石同步馬達(Permanent Magnet synchronous Motor，以下簡稱為PM馬達)，驅動電動車或油電混合車等的馬達，一般是使用PM馬達。可是，近年來，由低成本化的觀點，對於開關磁阻馬達(Switched Reluctance Motor，以下簡稱為SR馬達)的需求漸擴大。 For example, a motor is mounted on an electric vehicle or a hybrid electric vehicle. As an example of such a motor, there is a permanent magnet synchronous motor (hereinafter referred to as a PM motor), and a motor such as an electric vehicle or a hybrid electric vehicle is driven, and a PM motor is generally used. However, in recent years, from the viewpoint of cost reduction, the demand for a switched reluctance motor (hereinafter referred to as an SR motor) has been increasing.

為了控制此SR馬達，需要SR馬達專用的反相器電路(Inverter Circuit)，此SR馬達專用的反相器電路是以功率模組(電子裝置)的形式製品化。可是，對應於SR馬達專用的反相器電路之功率模組的構成零件是裸晶安裝品為主流，由謀求功率模組的高性能化或小型化的觀點，處於存在改善的餘地之現狀。 In order to control this SR motor, an inverter circuit dedicated to the SR motor is required, and the inverter circuit dedicated to the SR motor is manufactured in the form of a power module (electronic device). However, the components of the power module corresponding to the inverter circuit dedicated to the SR motor are mainly in the form of bare-metal mounted products, and there is room for improvement from the viewpoint of improving the performance and miniaturization of the power module.

於是，本發明者是由謀求功率模組的高性能化或小型化的觀點，檢討使用被封裝化的半導體裝置(封裝品)，作為對應於SR馬達專用的反相器電路之功率模 組的構成零件。而且，在此檢討過程中，由SR馬達專用的反相器電路的性質，明確封裝品是需要彼此電性分離的2個晶片搭載部。 Then, the inventors of the present invention reviewed the use of a packaged semiconductor device (package) as a power mode corresponding to an inverter circuit dedicated to the SR motor from the viewpoint of improving the performance and miniaturization of the power module. The constituent parts of the group. Further, in the course of this review, it is clear from the nature of the inverter circuit dedicated to the SR motor that the package is a two wafer mounting portion that needs to be electrically separated from each other.

因此，特別是為了謀求封裝品的小型化，而產生雖彼此電性分離2個晶片搭載部，但儘可能接近配置的必要性。基於此情形，在封裝品的製造工程中，期望可將2個的晶片搭載部正確定位而接近配置的技術。具體而言，期望可使2個的晶片搭載部儘可能接近配置之定位治具的開發。 For this reason, in order to reduce the size of the package, it is necessary to electrically separate the two wafer mounting portions, but it is necessary to arrange them as close as possible. In view of this, in the manufacturing process of the package, it is desirable to be able to accurately position the two wafer mounting portions and approach the arrangement. Specifically, it is desirable to make the two wafer mounting portions as close as possible to the development of the positioning fixtures disposed.

其他的課題及新穎的特徵可由本說明書的記述及附圖明確得知。 Other problems and novel features will be apparent from the description and the drawings of the specification.

一實施形態的半導體裝置的製造方法是以第1晶片搭載部的一側面與第2晶片搭載部的一側面能夠對向的方式，在治具的主面上配置第1晶片搭載部及第2晶片搭載部。然後，將第1晶片搭載部的一側面以外的複數的側面分別推壓於複數的第1凸部，藉此將第1晶片搭載部定位於治具的主面上，且將第2晶片搭載部的一側面以外的複數的側面分別推壓於複數的第2凸部，藉此將第2晶片搭載部定位於治具的主面上。 In the method of manufacturing the semiconductor device according to the embodiment, the first wafer mounting portion and the second surface are disposed on the main surface of the jig such that one side surface of the first wafer mounting portion faces the one side surface of the second wafer mounting portion. Wafer mounting section. Then, a plurality of side faces other than one side surface of the first wafer mounting portion are pressed against the plurality of first convex portions, whereby the first wafer mounting portion is positioned on the main surface of the jig, and the second wafer is mounted. The plurality of side faces other than one side of the portion are pressed against the plurality of second projections, whereby the second wafer mounting portion is positioned on the main surface of the jig.

若根據一實施形態，則可謀求半導體裝置的 小型化。 According to one embodiment, a semiconductor device can be obtained. miniaturization.

CVX1‧‧‧凸部 CVX1‧‧‧ convex

CVX2‧‧‧凸部 CVX2‧‧‧ convex

SSF2‧‧‧側面 SSF2‧‧‧ side

SSF3‧‧‧側面 SSF3‧‧‧ side

SSF5‧‧‧側面 SSF5‧‧‧ side

SSF6‧‧‧側面 SSF6‧‧‧ side

SSF7‧‧‧側面 SSF7‧‧‧ side

SSF8‧‧‧側面 SSF8‧‧‧ side

TAB1‧‧‧晶片搭載部 TAB1‧‧‧ Wafer Loading Department

TAB2‧‧‧晶片搭載部 TAB2‧‧‧ Wafer Loading Department

圖1(a)~(c)是說明SR馬達的旋轉原理的圖。 1(a) to (c) are diagrams illustrating the principle of rotation of the SR motor.

圖2是在直流電源與SR馬達之間配置反相器電路的電路圖。 2 is a circuit diagram of an inverter circuit disposed between a DC power source and an SR motor.

圖3是說明實施形態1的反相器電路的動作的圖。 Fig. 3 is a view for explaining the operation of the inverter circuit of the first embodiment;

圖4(a)是表示PM馬達用的反相器電路的一部分的圖，(b)是表示SR馬達用的反相器電路的一部分的圖。 4(a) is a view showing a part of an inverter circuit for a PM motor, and FIG. 4(b) is a view showing a part of an inverter circuit for an SR motor.

圖5是表示形成有IGBT的半導體晶片的外形形狀的平面圖。 FIG. 5 is a plan view showing an outer shape of a semiconductor wafer in which an IGBT is formed.

圖6是表示與半導體晶片的表面相反側的背面的平面圖。 Fig. 6 is a plan view showing a back surface on the opposite side to the surface of the semiconductor wafer.

圖7是表示形成於半導體晶片的電路的一例的電路圖。 FIG. 7 is a circuit diagram showing an example of a circuit formed on a semiconductor wafer.

圖8是表示實施形態1的IGBT的裝置構造的剖面圖。 Fig. 8 is a cross-sectional view showing the structure of an apparatus of an IGBT according to the first embodiment.

圖9是表示形成有二極體的半導體晶片的外形形狀的平面圖。 Fig. 9 is a plan view showing the outer shape of a semiconductor wafer in which a diode is formed.

圖10是表示二極體的裝置構造的剖面圖。 Fig. 10 is a cross-sectional view showing the structure of a device of a diode.

圖11(a)是由實施形態1的半導體裝置的表面側所見的平面圖，(b)是由實施形態1的半導體裝置的一側面所見的側面圖，(c)是由實施形態1的半導體裝置的 背面側所見的平面圖。 Fig. 11 (a) is a plan view showing the surface side of the semiconductor device of the first embodiment, (b) is a side view of the semiconductor device of the first embodiment, and (c) is a semiconductor device of the first embodiment. of The plan view seen on the back side.

圖12(a)是表示本實施形態1的半導體裝置的內部構造的平面圖，(b)是圖12(a)的A-A線的剖面圖，(c)是圖12(a)的B-B線的剖面圖。 Fig. 12 (a) is a plan view showing the internal structure of the semiconductor device of the first embodiment, (b) is a cross-sectional view taken along line AA of Fig. 12 (a), and (c) is a cross section taken along line BB of Fig. 12 (a). Figure.

圖13是將圖12(b)的一部分領域擴大顯示的圖。 Fig. 13 is a view showing an enlarged view of a part of the field of Fig. 12(b).

圖14是說明「在側面具有階差形狀的構造」的圖。 FIG. 14 is a view for explaining "a structure having a step shape on the side surface".

圖15是說明「在側面具有階差形狀的構造」的圖。 Fig. 15 is a view for explaining "a structure having a step shape on the side surface".

圖16是(a)是表示實施形態1的半導體裝置的製造工程的立體圖，(b)是在圖16(a)的A-A線切斷的剖面圖。 Fig. 16 (a) is a perspective view showing a manufacturing process of the semiconductor device of the first embodiment, and Fig. 16 (b) is a cross-sectional view taken along line A-A of Fig. 16 (a).

圖17(a)是表示實施形態1的半導體裝置的製造工程的立體圖，(b)是在圖17(a)的A-A線切斷的剖面圖。 Fig. 17 (a) is a perspective view showing a manufacturing process of the semiconductor device of the first embodiment, and Fig. 17 (b) is a cross-sectional view taken along line A-A of Fig. 17 (a).

圖18模式性地表示在2個晶片搭載部上形成導電性膏的工程的圖。 Fig. 18 is a view schematically showing a process of forming a conductive paste on two wafer mounting portions.

圖19(a)是表示實施形態1的半導體裝置的製造工程的立體圖，(b)是在圖19(a)的A-A線切斷的剖面圖。 Fig. 19 (a) is a perspective view showing a manufacturing process of the semiconductor device of the first embodiment, and Fig. 19 (b) is a cross-sectional view taken along line A-A of Fig. 19 (a).

圖20(a)是表示實施形態1的半導體裝置的製造工程的立體圖，(b)是在圖20(a)的B-B線切斷的剖面圖。 Fig. 20 (a) is a perspective view showing a manufacturing process of the semiconductor device of the first embodiment, and Fig. 20 (b) is a cross-sectional view taken along line B-B of Fig. 20 (a).

圖21(a)是表示實施形態1的半導體裝置的製造工程的立體圖，(b)是在圖21(a)的B-B線切斷的剖面圖。 Fig. 21 (a) is a perspective view showing a manufacturing process of the semiconductor device of the first embodiment, and Fig. 21 (b) is a cross-sectional view taken along line B-B of Fig. 21 (a).

圖22(a)是表示實施形態1的半導體裝置的製造工程的立體圖，(b)是在圖22(a)的B-B線切斷的剖面圖。 Fig. 22 (a) is a perspective view showing a manufacturing process of the semiconductor device of the first embodiment, and Fig. 22 (b) is a cross-sectional view taken along line B-B of Fig. 22 (a).

圖23是表示實施形態1的半導體裝置的製造工程的立體圖。 Fig. 23 is a perspective view showing a manufacturing process of the semiconductor device of the first embodiment.

圖24(a)是表示實施形態1的半導體裝置的製造工程的立體圖，(b)是在圖24(a)的B-B線切斷的剖面圖。 Fig. 24 (a) is a perspective view showing a manufacturing process of the semiconductor device of the first embodiment, and Fig. 24 (b) is a cross-sectional view taken along line B-B of Fig. 24 (a).

圖25(a)是表示在實施形態1中，於下治具上配置2個晶片搭載部的狀態的平面圖，(b)是在圖25(a)的A-A線切斷的剖面圖，(c)是在圖25(a)的B-B線切斷的剖面圖。 Fig. 25 (a) is a plan view showing a state in which two wafer mounting portions are placed on a lower jig in the first embodiment, and (b) is a cross-sectional view taken along line AA of Fig. 25 (a), (c) ) is a cross-sectional view taken along line BB of Fig. 25(a).

圖26(a)是表示在實施形態1中，於下治具上配置上治具的狀態的平面圖，(b)是在圖26(a)的A-A線切斷的剖面圖，(c)是在圖26(a)的B-B線切斷的剖面圖。 Fig. 26 (a) is a plan view showing a state in which the upper jig is placed on the lower jig in the first embodiment, and (b) is a cross-sectional view taken along line AA of Fig. 26 (a), and (c) is A cross-sectional view taken along line BB of Fig. 26(a).

圖27(a)是表示在實施形態1中，於上治具上配置導線架的狀態的平面圖，(b)是在圖27(a)的A-A線切斷的剖面圖，(c)是在圖27(a)的B-B線切斷的剖面圖。 Fig. 27 (a) is a plan view showing a state in which a lead frame is placed on an upper jig in the first embodiment, (b) is a cross-sectional view taken along line AA of Fig. 27 (a), and (c) is a Fig. 27 (a) is a cross-sectional view taken along the line BB.

圖28是表示在下治具固定2個晶片搭載部的狀態的模式圖。 FIG. 28 is a schematic view showing a state in which two wafer mounting portions are fixed to the lower jig.

圖29是說明第1關聯技術的圖。 Fig. 29 is a diagram for explaining the first related art.

圖30是說明第2關聯技術的圖。 Fig. 30 is a diagram for explaining a second related art.

圖31是表示在下治具固定1個晶片搭載部的狀態的模式圖。 FIG. 31 is a schematic view showing a state in which one wafer mounting portion is fixed to the lower fixture.

圖32是說明藉由實施形態1的第2特徵點所取得的優點的圖。 Fig. 32 is a view for explaining advantages obtained by the second feature point in the first embodiment.

圖33是表示在變形例1的下治具固定2個晶片搭載部的狀態的模式圖。 FIG. 33 is a schematic view showing a state in which two wafer mounting portions are fixed to the lower fixture of the first modification.

圖34是表示在變形例2的下治具固定2個晶片搭載部的狀態的模式圖。 FIG. 34 is a schematic view showing a state in which two wafer mounting portions are fixed to the lower fixture of the second modification.

圖35是表示在變形例3的下治具固定2個晶片搭載部的狀態的模式圖。 35 is a schematic view showing a state in which two wafer mounting portions are fixed to the lower fixture of the third modification.

圖36是表示在變形例4的下治具固定2個晶片搭載部的狀態的模式圖。 FIG. 36 is a schematic view showing a state in which two wafer mounting portions are fixed to the lower fixture of the fourth modification.

圖37是表示在實施形態2的下治具固定2個晶片搭載部的狀態的模式圖。 FIG. 37 is a schematic view showing a state in which two wafer mounting portions are fixed to the lower fixture according to the second embodiment.

圖38是表示在下治具固定1個晶片搭載部的狀態的模式圖。 FIG. 38 is a schematic view showing a state in which one wafer mounting portion is fixed to the lower jig.

圖39是表示從實施形態2除外的構成的模式圖。 Fig. 39 is a schematic view showing a configuration excluding the second embodiment.

在以下的實施形態中基於方便起見有其必要時，分割成複數的部分或實施形態來進行說明，但除特別明示的情況，該等不是彼此無關者，一方是處於另一方的一部分或全部的變形例，詳細，補充說明等的關係。 In the following embodiments, a part or an embodiment divided into plural numbers will be described as necessary for convenience. However, unless otherwise specified, the ones are not related to each other, and one of them is part or all of the other. The relationship between the modification, the detail, the supplementary explanation, and the like.

並且，在以下的實施形態中，言及要素的數 目等(包含個數，數值，量，範圍等)時，除了特別明示時及原理上明確限於特定的數目時等以外，並不限定於其特定的數目，亦可為特定的數目以上或以下。 Further, in the following embodiments, the number of elements is recited. The order (including the number, the numerical value, the quantity, the range, and the like) is not limited to a specific number, and may be a specific number or more, unless otherwise specified and specifically limited to a specific number. .

而且，在以下的實施形態中，其構成要素(亦包含要素步驟等)除了特別明示時及原理上明確為必須時等以外，當然不一定是必須者。 Further, in the following embodiments, the constituent elements (including the element steps and the like) are not necessarily essential unless otherwise specified and essential in principle.

同樣，在以下的實施形態中，言及構成要素等的形狀，位置關係等時，除了特別明示時及原理上明確不是時等以外，包含實質上近似或類似其形狀等者。此情形是有關上述數值及範圍也同樣。 Similarly, in the following embodiments, when the shape, the positional relationship, and the like of the constituent elements and the like are included, the shape is substantially similar or similar to the shape, unless otherwise specified. The same is true for the above values and ranges.

並且，在用以說明實施形態的全圖中，在同一構件，原則上是附上同一符號，其重複的說明是省略。另外，即使是平面圖，為了容易了解圖面，也會有時附上剖面線。 In the entire description of the embodiments, the same components are denoted by the same reference numerals, and the repeated description is omitted. In addition, even in the case of a plan view, a hatching may be attached in order to easily understand the drawing.

(實施形態1) (Embodiment 1)

本實施形態1是有關包含控制SR馬達的反相器電路的功率模組之技術思想。在此，本說明書的說明是概念性地，功率模組全體對應於電子裝置，構成功率模組的構成零件之中，包含半導體晶片的電子零件對應於半導體裝置。 The first embodiment relates to the technical idea of a power module including an inverter circuit for controlling an SR motor. Here, the description of the present specification is conceptually that the entire power module corresponds to an electronic device, and among the components constituting the power module, the electronic component including the semiconductor wafer corresponds to the semiconductor device.

<SR馬達的旋轉原理> <Rotation principle of SR motor>

例如，在電動車或油電混合車等中搭載有馬達，此馬 達是有PM馬達或SR馬達。SR馬達相較於PM馬達，低成本，且具有可高速旋轉的優點。亦即，SR馬達因為不使用稀土(稀有金屬)的點，或轉子(旋轉子)的構造單純的點，所以具有可實現比PM馬達更低成本化的優點。又，由於SR馬達是轉子會以單純的鐵塊來形成堅固的構造，所以具有可高速旋轉的優點。因此，近年來，由低成本化的觀點，對於SR馬達的需求擴大，本實施形態1是著眼於SR馬達。以下，首先說明有關此SR馬達的旋轉原理。 For example, a motor is mounted on an electric vehicle or a hybrid electric vehicle, etc. There are PM motors or SR motors. The SR motor is lower in cost than the PM motor and has the advantage of being able to rotate at a high speed. In other words, since the SR motor does not use a point of rare earth (rare metal) or a simple structure of a rotor (rotor), it has an advantage that it can be made lower cost than a PM motor. Further, since the SR motor is a rotor having a strong structure formed of a simple iron block, it has an advantage of being able to rotate at a high speed. Therefore, in recent years, from the viewpoint of cost reduction, the demand for the SR motor has been expanded, and the first embodiment has focused on the SR motor. Hereinafter, the principle of rotation of this SR motor will be described first.

圖1(a)~(c)是說明SR馬達MT的旋轉原理的圖。首先，如圖1(a)所示般，SR馬達MT是具有定子ST及轉子RT，在定子ST的內部配置有可旋轉的轉子RT。而且，在定子ST的端子W與端子W’之間(W-W’間)是捲繞捲線而形成線圈L(W)，若在包含被捲繞於此定子ST的W-W’間的線圈L(W)的閉電路A中流動電流，則流至被捲繞於W-W’間的線圈L(W)的電流所引起的電磁石會被形成。此結果，例如，由鐵構件所構成的轉子RT會接受藉由此電磁石所產生的磁力之引力，而被拉至圖1(a)所示的箭號的方向。 1(a) to (c) are diagrams for explaining the principle of rotation of the SR motor MT. First, as shown in Fig. 1(a), the SR motor MT has a stator ST and a rotor RT, and a rotatable rotor RT is disposed inside the stator ST. Further, between the terminal W of the stator ST and the terminal W' (between W and W'), the winding wire is wound to form the coil L (W), and if it is included between the W-W' wound around the stator ST When a current flows in the closed circuit A of the coil L (W), an electromagnet which is caused by a current flowing to the coil L (W) wound between W-W' is formed. As a result, for example, the rotor RT composed of the iron member receives the attraction force of the magnetic force generated by the electromagnet, and is pulled to the direction of the arrow shown in Fig. 1(a).

接著，若將包含被捲繞於定子ST的W-W’間的線圈L(W)的閉電路A開放，而遮斷流動的電流，則藉由流至被捲繞於W-W’間的線圈L(W)的電流所引起的電磁石而產生的磁力會消失。藉此，從流至被捲繞於W-W’間的線圈L(W)的電流所引起的電磁石來施加於轉 子RT的引力會變無。之後，如圖1(b)所示般，若在包含被捲繞於定子ST的端子U與端子U’之間(U-U’間)的線圈L(U)的閉電路B中流動電流，則流至被捲繞於U-U’間的線圈L(U)的電流所引起的電磁石會被形成。此結果，轉子RT會從該電磁石接受引力，轉子RT會被拉至圖1(b)所示的箭號的方向。 Next, when the closed circuit A including the coil L (W) wound between the W-W' of the stator ST is opened, the current flowing is blocked, and the flow is wound between the W-W' The magnetic force generated by the electromagnet caused by the current of the coil L (W) disappears. Thereby, the electromagnet caused by the current flowing to the coil L (W) wound between W-W' is applied to the rotation. The gravity of the sub RT will become absent. Thereafter, as shown in FIG. 1(b), a current flows in the closed circuit B including the coil L (U) wound between the terminal U of the stator ST and the terminal U' (between U-U'). Then, an electromagnet caused by a current flowing to the coil L (U) wound between the U-U's is formed. As a result, the rotor RT receives gravity from the electromagnet, and the rotor RT is pulled to the direction of the arrow shown in Fig. 1(b).

其次，若將包含被捲繞於定子ST的U-U’間的線圈L(U)的閉電路B開放，而遮斷流動的電流，則藉由流至被捲繞於U-U’間的線圈L(U)的電流所引起的電磁石而產生的磁力會消失。藉此，從流至被捲繞於U-U’間的線圈L(U)的電流所引起的電磁石來施加於轉子RT的引力會變無。之後，如圖1(c)所示般，若在包含被捲繞於定子ST的端子V與端子V’之間(V-V’間)的線圈L(V)的閉電路C中流動電流，則流至被捲繞於V-V’間的線圈L(V)的電流所引起的電磁石會被形成。此結果，轉子RT會從該電磁石接受引力，轉子RT會被拉至圖1(c)所示的箭號的方向。 Next, when the closed circuit B including the coil L (U) wound between the U-U' of the stator ST is opened, the current flowing is blocked, and the flow is wound between the U-U' The magnetic force generated by the electromagnet caused by the current of the coil L (U) disappears. Thereby, the attractive force applied to the rotor RT from the electromagnet caused by the current flowing to the coil L (U) wound between the U-U' becomes unnecessary. Thereafter, as shown in FIG. 1(c), a current flows in the closed circuit C including the coil L (V) wound between the terminal V of the stator ST and the terminal V' (between V-V'). Then, an electromagnet caused by a current flowing to the coil L (V) wound between V-V' is formed. As a result, the rotor RT receives gravity from the electromagnet, and the rotor RT is pulled to the direction of the arrow shown in Fig. 1(c).

如以上般，依序切換閉電路A、閉電路B及閉電路C，在各自閉電路中逐次流動電流，藉此形成電磁石，藉由來自此電磁石的引力，例如圖1(a)~(c)所示般，轉子RT會連續逆時針旋轉。此為SR馬達MT的旋轉原理，為了使SR馬達MT旋轉動作，可知需要切換閉電路A、閉電路B及閉電路C來流動電流。進行此閉電路A、閉電路B及閉電路C的切換控制的電路為反相器電 路。亦即，反相器電路是構成依序切換閉電路A、閉電路B及閉電路C來控制流至各自閉電路的電流。以下，說明有關具有如此的機能之反相器電路的構成。 As described above, the closed circuit A, the closed circuit B, and the closed circuit C are sequentially switched, and currents are sequentially flowed in the respective closed circuits, thereby forming an electromagnet, and by the attraction force from the electromagnet, for example, FIG. 1(a) to (c) As shown, the rotor RT rotates counterclockwise continuously. This is the principle of rotation of the SR motor MT. In order to rotate the SR motor MT, it is necessary to switch the closed circuit A, the closed circuit B, and the closed circuit C to flow a current. The circuit for switching control of the closed circuit A, the closed circuit B, and the closed circuit C is an inverter road. That is, the inverter circuit is configured to sequentially switch the closed circuit A, the closed circuit B, and the closed circuit C to control the current flowing to the respective closed circuits. Hereinafter, the configuration of an inverter circuit having such a function will be described.

<反相器電路的構成> <Configuration of Inverter Circuit>

圖2是在直流電源E與SR馬達MT之間配置反相器電路INV的電路圖。如圖2所示般，反相器電路INV是具有與直流電源E並聯的第1臂(leg)LG1、第2臂LG2及第3臂LG3。而且，第1臂LG1是由被串聯的上臂UA(U)及下臂BA(U)所構成，第2臂LG2是由被串聯的上臂UA(V)及下臂BA(V)所構成，第3臂LG3是由被串聯的上臂UA(W)及下臂BA(W)所構成。而且，上臂UA(U)是由IGBTQ1及二極體FWD1所構成，下臂BA(U)是由IGBTQ2及二極體FWD2所構成。此時，上臂UA(U)的IGBTQ1、及下臂BA(U)的二極體FWD2皆與端子TE(U1)連接，IGBTQ1與二極體FWD2是被串聯。另一方面，上臂UA(U)的二極體FWD1、及下臂BA(U)的IGBTQ2皆是與端子TE(U2)連接，二極體FWD1與IGBTQ2是被串聯。而且，端子TE(U1)是與SR馬達的端子U’連接，端子TE(U2)是與SR馬達的端子U連接。亦即，在反相器電路INV的端子TE(U1)與端子TE(U2)之間是連接存在於SR馬達MT的端子U與端子U’之間的線圈L(U)。 FIG. 2 is a circuit diagram in which an inverter circuit INV is disposed between the DC power source E and the SR motor MT. As shown in FIG. 2, the inverter circuit INV is a first arm LG1, a second arm LG2, and a third arm LG3 having a parallel connection with the DC power supply E. Further, the first arm LG1 is composed of an upper arm UA (U) and a lower arm BA (U) connected in series, and the second arm LG2 is composed of an upper arm UA (V) and a lower arm BA (V) connected in series. The third arm LG3 is composed of an upper arm UA (W) and a lower arm BA (W) that are connected in series. Further, the upper arm UA (U) is composed of the IGBT Q1 and the diode FWD1, and the lower arm BA (U) is composed of the IGBT Q2 and the diode FWD2. At this time, the IGBT Q1 of the upper arm UA (U) and the diode FWD 2 of the lower arm BA (U) are both connected to the terminal TE (U1), and the IGBT Q1 and the diode FWD 2 are connected in series. On the other hand, the diode FWD1 of the upper arm UA (U) and the IGBT Q2 of the lower arm BA (U) are connected to the terminal TE (U2), and the diodes FWD1 and IGBT Q2 are connected in series. Further, the terminal TE (U1) is connected to the terminal U' of the SR motor, and the terminal TE (U2) is connected to the terminal U of the SR motor. That is, between the terminal TE (U1) of the inverter circuit INV and the terminal TE (U2), the coil L (U) which is present between the terminal U of the SR motor MT and the terminal U' is connected.

同樣，上臂UA(V)是由IGBTQ1及二極體 FWD1所構成，且下臂BA(V)是由IGBTQ2及二極體FWD2所構成。此時，上臂UA(V)的IGBTQ1、及下臂BA(V)的二極體FWD2皆是與端子TE(V1)連接，IGBTQ1與二極體FWD2是被串聯。另一方面，上臂UA(V)的二極體FWD1、及下臂BA(V)的IGBTQ2皆是與端子TE(V2)連接，二極體FWD1與IGBTQ2是被串聯。而且，端子TE(V1)是與SR馬達的端子V’連接，端子TE(V2)是與SR馬達的端子V連接。亦即，在反相器電路INV的端子TE(V1)與端子TE(V2)之間是連接存在於SR馬達MT的端子V與端子V’之間的線圈L(V)。 Similarly, the upper arm UA(V) is made up of IGBTQ1 and diodes. The FWD 1 is configured, and the lower arm BA (V) is composed of the IGBT Q2 and the diode FWD2. At this time, the IGBT Q1 of the upper arm UA (V) and the diode FWD 2 of the lower arm BA (V) are connected to the terminal TE (V1), and the IGBT Q1 and the diode FWD 2 are connected in series. On the other hand, the diode FWD1 of the upper arm UA (V) and the IGBT Q2 of the lower arm BA (V) are connected to the terminal TE (V2), and the diodes FWD1 and IGBT Q2 are connected in series. Further, the terminal TE (V1) is connected to the terminal V' of the SR motor, and the terminal TE (V2) is connected to the terminal V of the SR motor. That is, between the terminal TE (V1) of the inverter circuit INV and the terminal TE (V2), the coil L (V) which is present between the terminal V of the SR motor MT and the terminal V' is connected.

又，上臂UA(W)是由IGBTQ1及二極體FWD1所構成，且下臂BA(W)是由IGBTQ2及二極體FWD2所構成。此時，上臂UA(W)的IGBTQ1、及下臂BA(W)的二極體FWD2皆是與端子TE(W1)連接，IGBTQ1與二極體FWD2是被串聯。另一方面，上臂UA(W)的二極體FWD1、及下臂BA(W)的IGBTQ2皆是與端子TE(W2)連接，二極體FWD1與IGBTQ2是被串聯。而且，端子TE(W1)是與SR馬達的端子W’連接，端子TE(W2)是與SR馬達的端子W連接。亦即，在反相器電路INV的端子TE(W1)與端子TE(W2)之間是連接存在於SR馬達MT的端子W與端子W’之間的線圈L(W)。 Further, the upper arm UA (W) is composed of the IGBT Q1 and the diode FWD1, and the lower arm BA (W) is composed of the IGBT Q2 and the diode FWD2. At this time, the IGBT Q1 of the upper arm UA (W) and the diode FWD 2 of the lower arm BA (W) are connected to the terminal TE (W1), and the IGBT Q1 and the diode FWD 2 are connected in series. On the other hand, both the diode FWD1 of the upper arm UA (W) and the IGBT Q2 of the lower arm BA (W) are connected to the terminal TE (W2), and the diodes FWD1 and IGBT Q2 are connected in series. Further, the terminal TE (W1) is connected to the terminal W' of the SR motor, and the terminal TE (W2) is connected to the terminal W of the SR motor. That is, between the terminal TE (W1) of the inverter circuit INV and the terminal TE (W2), the coil L (W) which is present between the terminal W of the SR motor MT and the terminal W' is connected.

其次，上臂UA(U)、上臂UA(V)及上臂 UA(W)的各構成要素之IGBTQ1的閘極電極是與閘極控制電路GCC電性連接。而且，藉由來自此閘極控制電路GCC的閘極控制訊號，控制上臂UA(U)、上臂UA(V)及上臂UA(W)的各GBTQ1的ON/OFF動作(開關動作)。同樣，下臂BA(U)、下臂BA(V)及下臂BA(W)的各構成要素之IGBTQ2的閘極電極也與閘極控制電路GCC電性連接，藉由來自此閘極控制電路GCC的閘極控制訊號，控制下臂BA(U)、下臂BA(V)及下臂BA(W)的各IGBTQ2的ON/OFF動作。 Second, the upper arm UA (U), the upper arm UA (V) and the upper arm The gate electrode of the IGBT Q1 of each component of the UA (W) is electrically connected to the gate control circuit GCC. Further, the ON/OFF operation (switching operation) of each GBTQ1 of the upper arm UA (U), the upper arm UA (V), and the upper arm UA (W) is controlled by the gate control signal from the gate control circuit GCC. Similarly, the gate electrodes of the IGBTs Q2 of the respective components of the lower arm BA (U), the lower arm BA (V), and the lower arm BA (W) are also electrically connected to the gate control circuit GCC, and are controlled by the gate. The gate control signal of the circuit GCC controls the ON/OFF operation of each of the IGBTs Q2 of the lower arm BA (U), the lower arm BA (V), and the lower arm BA (W).

在此，例如，可思考使用功率MOSFET(Metal Oxide Semiconductor Field Effect Transistor)，作為反相器電路INV的開關元件。若根據此功率MOSFET，則由於是以施加於閘極電極的電壓來控制ON/OFF動作之電壓驅動型，因此具有可高速開關的優點。另一方面，功率MOSFET是具有隨著謀求高耐壓化而ON電阻變高，發熱量變大的性質。原因是因為功率MOSFET藉由增厚低濃度的磊晶層(漂移層)的厚度來確保耐壓，但若低濃度的磊晶層的厚度變厚，則電阻會變大，成為副作用。 Here, for example, a power MOSFET (Metal Oxide Semiconductor Field Effect Transistor) can be considered as a switching element of the inverter circuit INV. According to this power MOSFET, since the voltage is driven by the voltage applied to the gate electrode to control the ON/OFF operation, there is an advantage that the switch can be switched at a high speed. On the other hand, the power MOSFET has a property that the ON resistance increases as the voltage is increased, and the amount of heat generation increases. The reason is that the power MOSFET ensures the withstand voltage by thickening the thickness of the epitaxial layer (drift layer) having a low concentration. However, if the thickness of the epitaxial layer having a low concentration is increased, the electric resistance becomes large, which is a side effect.

對於此，也有可處理大的電力之雙極電晶體存在，作為開關元件，但由於雙極電晶體是藉由基礎電流來控制ON/OFF動作的電流驅動型，因此開關速度相較於前述的功率MOSFET，一般具有較慢的性質。 In this case, there is also a bipolar transistor that can handle large electric power, and as a switching element, since the bipolar transistor is a current-driven type that controls ON/OFF operation by a base current, the switching speed is compared with the foregoing. Power MOSFETs generally have slower properties.

因此，在需要大電力且高速開關的電動車或 油電混合車的馬達等的用途中，功率MOSFET或雙極電晶體是難以對應。於是，在上述需要大電力且高速開關的用途是使用IGBT。此IGBT是由功率MOSFET及雙極電晶體的組合所構成，為兼備功率MOSFET的高速開關特性及雙極電晶體的高耐壓性之半導體元件。基於此情形，若根據IGBT，則由於可大電力且高速開關，因此形成適於需要大電流且高速開關的用途之半導體元件。以上，本實施形態1的反相器電路INV是採用IGBT，作為開關元件。 Therefore, in an electric vehicle that requires large power and high speed switching, In applications such as motors for hybrid electric vehicles, power MOSFETs or bipolar transistors are difficult to cope with. Therefore, the use of the above-mentioned high-power and high-speed switching is to use an IGBT. This IGBT is composed of a combination of a power MOSFET and a bipolar transistor, and is a semiconductor element having both high-speed switching characteristics of a power MOSFET and high withstand voltage of a bipolar transistor. In this case, according to the IGBT, since it is possible to switch at a high power and at a high speed, a semiconductor element suitable for use in a high-speed switch requiring a large current is formed. As described above, the inverter circuit INV of the first embodiment uses an IGBT as a switching element.

本實施形態1的反相器電路INV是具有彼此並聯的第1臂LG1~第3臂LG3，第1臂LG1~第3臂LG3是分別具備2個的IGBT(IGBTQ1及IGBTQ2)、及2個的二極體(二極體FWD1及二極體FWD2)。基於此情形，本實施形態1的反相器電路INV是由6個的IGBT及6個的二極體所構成。在如此構成的反相器電路INV中，以閘極控制電路GCC來控制3個的IGBTQ1及3個的IGBTQ2的ON/OFF動作(開關動作)，藉此可使SR馬達MT旋轉。以下，一邊參照圖面，一邊說明有關用以使SR馬達MT旋轉的反相器電路INV的動作。 In the inverter circuit INV of the first embodiment, the first arm LG1 to the third arm LG3 are connected in parallel, and the first arm LG1 to the third arm LG3 are provided with two IGBTs (IGBTQ1 and IGBTQ2) and two. Diode (diode FWD1 and diode FWD2). In this case, the inverter circuit INV of the first embodiment is composed of six IGBTs and six diodes. In the inverter circuit INV configured as described above, the ON/OFF operation (switching operation) of the three IGBTs Q1 and the three IGBTs Q2 is controlled by the gate control circuit GCC, whereby the SR motor MT can be rotated. Hereinafter, the operation of the inverter circuit INV for rotating the SR motor MT will be described with reference to the drawings.

<反相器電路的動作> <Operation of Inverter Circuit>

圖3是說明本實施形態1的反相器電路INV的動作的圖。圖3所示的反相器電路INV是用以使SR馬達MT旋轉驅動的電路，具有第1臂LG1~第3臂LG3。此時， 例如，第1臂LG1是控制流至設在SR馬達MT的端子U與端子U’之間(U-U’間)的線圈L(U)的電流之電路，第2臂LG2是控制流至設在SR馬達MT的端子V與端子V’之間(V-V’間)的線圈L(V)的電流之電路。同樣，第3臂LG3是控制流至設在SR馬達MT的端子W與端子W’之間(W-W’間)的線圈L(W)的電流之電路。亦即，圖3所示的反相器電路INV是藉由第1臂LG1來控制流至線圈L(U)的電流，且藉由第2臂LG2來控制流至線圈L(V)的電流，且藉由第3臂LG3來控制流至線圈L(W)的電流。然後，在圖3所示的反相器電路INV中，根據第1臂LG1之對線圈L(U)的電流控制、及根據第2臂LG2之對線圈L(V)的電流控制、以及根據第3臂LG3之對線圈L(W)的電流控制是改變時機來同等進行，因此以下例如舉根據第2臂LG2之對線圈L(V)的電流控制為例進行說明。 Fig. 3 is a view for explaining the operation of the inverter circuit INV of the first embodiment. The inverter circuit INV shown in FIG. 3 is a circuit for rotationally driving the SR motor MT, and has a first arm LG1 to a third arm LG3. at this time, For example, the first arm LG1 is a circuit that controls the current flowing to the coil L (U) provided between the terminal U of the SR motor MT and the terminal U' (between U-U'), and the second arm LG2 is controlled to flow. A circuit for supplying current to the coil L (V) between the terminal V of the SR motor MT and the terminal V' (between V-V'). Similarly, the third arm LG3 is a circuit that controls the current flowing to the coil L (W) provided between the terminal W of the SR motor MT and the terminal W' (between W and W'). That is, the inverter circuit INV shown in FIG. 3 controls the current flowing to the coil L (U) by the first arm LG1, and controls the current flowing to the coil L (V) by the second arm LG2. The current flowing to the coil L (W) is controlled by the third arm LG3. Then, in the inverter circuit INV shown in FIG. 3, current control by the pair of coils L (U) of the first arm LG1, current control by the pair of coils L (V) of the second arm LG2, and Since the current control of the coil L (W) of the third arm LG3 is performed in the same manner as the timing of the change, the current control of the coil L (V) by the second arm LG2 will be described below as an example.

在圖3中，首先，開始流動電流至SR馬達MT的線圈L(V)時，如激磁模式所示般，開啟IGBTQ1，且IGBTQ2也開啟。此時，從直流電源E通過開啟的IGBTQ1，從端子TE(V1)供給電流至線圈L(V)。然後，從線圈L(V)經由端子TE(V2)，通過開啟的IGBTQ2，電流回到直流電源E。如此一來，可在線圈L(V)流動電流。此結果，在SR馬達MT的定子ST的V-V’間形成電磁石，此電磁石所產生的引力會施加於轉子RT。然後，為了維持電磁石所產生的引力，而維 持流至SR馬達MT的線圈L(V)的電流。具體而言，如圖3的飛輪模式(Free-wheel Mode)所示般，關閉IGBTQ1，且開啟IGBTQ2。此情況，如圖3的飛輪模式所示般，藉由線圈L(V)、開啟的IGBTQ2及二極體FWD2來形成閉電路，在此閉電路中持續流動電流。此結果，流至線圈L(V)的電流會被維持，線圈L(V)所引起之來自電磁石的引力會持續施加於轉子RT。接著，使流至線圈L(V)的電流消失。具體而言，如圖3的減磁模式所示般，關閉IGBTQ1，且IGBTQ2也關閉。此情況，如圖3的減磁模式所示般，在由線圈L(V)、開啟的IGBTQ2及二極體FWD2所構成的閉電路內之線圈L(V)的殘留電力會藉由關閉IGBTQ2而經由二極體FWD1來消失。此結果，流至線圈L(V)的電流會減少而停止，流至線圈L(V)的電流所引起的電磁石會消滅。藉此，流至線圈L(V)的電流所引起之從電磁石施加於轉子RT的引力會變無。藉由在第1臂LG1~第3臂LG3改變時序來重複實施如此的動作，可使SR馬達MT的轉子RT旋轉。如以上般，可知藉由本實施形態1的反相器電路INV之電流控制，可使SR馬達MT旋轉。 In FIG. 3, first, when the current is started to the coil L (V) of the SR motor MT, as shown in the excitation mode, the IGBT Q1 is turned on, and the IGBT Q2 is also turned on. At this time, current is supplied from the terminal IGBT Q1 to the coil L (V) from the DC power source E through the turned-on IGBT Q1. Then, from the coil L (V) via the terminal TE (V2), the current is returned to the DC power source E through the turned-on IGBT Q2. In this way, a current can flow in the coil L (V). As a result, an electromagnet is formed between V-V' of the stator ST of the SR motor MT, and the gravitational force generated by the electromagnet is applied to the rotor RT. Then, in order to maintain the gravitational force generated by the electromagnet, The current flowing to the coil L (V) of the SR motor MT is held. Specifically, as shown in the flywheel mode (Free-wheel Mode) of FIG. 3, the IGBT Q1 is turned off, and the IGBT Q2 is turned on. In this case, as shown in the flywheel mode of FIG. 3, the closed circuit is formed by the coil L (V), the turned-on IGBT Q2, and the diode FWD2, and the current continues to flow in the closed circuit. As a result, the current flowing to the coil L (V) is maintained, and the attractive force from the electromagnet caused by the coil L (V) is continuously applied to the rotor RT. Then, the current flowing to the coil L (V) disappears. Specifically, as shown in the demagnetization mode of FIG. 3, the IGBT Q1 is turned off, and the IGBT Q2 is also turned off. In this case, as shown in the demagnetization mode of FIG. 3, the residual power of the coil L (V) in the closed circuit composed of the coil L (V), the turned-on IGBT Q2, and the diode FWD 2 is turned off by turning off the IGBT Q2. It disappears via the diode FWD1. As a result, the current flowing to the coil L (V) is reduced and stopped, and the electromagnet caused by the current flowing to the coil L (V) is extinguished. Thereby, the gravitational force applied to the rotor RT from the electromagnet caused by the current flowing to the coil L (V) becomes unnecessary. By repeating such an operation by changing the timing of the first arm LG1 to the third arm LG3, the rotor RT of the SR motor MT can be rotated. As described above, it is understood that the SR motor MT can be rotated by the current control of the inverter circuit INV of the first embodiment.

<與PM馬達用的反相器電路的相異點> <Dissimilarity with inverter circuit for PM motor>

其次，說明有關本實施形態1的SR馬達用的反相器電路與一般使用的PM馬達用的反相器電路的相異點。圖4是說明PM馬達用的反相器電路與SR馬達用的反相器 電路的相異點的圖。尤其圖4(a)是表示PM馬達用的反相器電路的一部分的圖，圖4(b)是表示SR馬達用的反相器電路的一部分的圖。 Next, a description will be given of a point of difference between the inverter circuit for the SR motor of the first embodiment and the inverter circuit for the PM motor which is generally used. Figure 4 is a diagram showing an inverter circuit for a PM motor and an inverter for an SR motor. A diagram of the distinct points of the circuit. In particular, FIG. 4(a) is a view showing a part of an inverter circuit for a PM motor, and FIG. 4(b) is a view showing a part of an inverter circuit for an SR motor.

在圖4(a)中，圖示有與PM馬達的端子U(U相)電性連接的反相器電路的一部分。具體而言，構成上臂的IGBTQ1與二極體FWD1會被逆並聯，且構成下臂的IGBTQ2與二極體FWD2會被逆並聯。而且，在上臂與下臂之間設有1個的端子TE(U)，此端子TE(U)與PM馬達的端子U會被連接。如此構成的PM馬達用的反相器電路是如圖4(a)所示般，PM馬達的U相線圈、V相線圈及W相線圈會被3相結線(例如，星形結線)，驅動各線圈的臂的元件會被控制成不會上下同時動作。因此，PM馬達用的反相器電路是以U相+V相→V相+W相→W相+U相的方式控制成2相成對而驅動。基於此情形，PM馬達用的反相器電路是開啟IGBT而對線圈流動電流後，為了相轉換，若關閉IGBT，則藉此，殘留電力所引起的回生電流會流至臂內的二極體，殘留電力消失。因此，PM馬達用的反相器電路是需要IGBT與二極體成對構成。此結果，PM馬達用的反相器電路是如圖4(a)所示般成為在上臂與下臂之間設有1個端子TE(U)的構成。 In Fig. 4(a), a part of an inverter circuit electrically connected to the terminal U (U phase) of the PM motor is illustrated. Specifically, the IGBT Q1 and the diode FWD1 constituting the upper arm are connected in anti-parallel, and the IGBT Q2 and the diode FWD 2 constituting the lower arm are connected in anti-parallel. Further, a terminal TE (U) is provided between the upper arm and the lower arm, and the terminal TE (U) and the terminal U of the PM motor are connected. In the inverter circuit for the PM motor configured as described above, as shown in FIG. 4(a), the U-phase coil, the V-phase coil, and the W-phase coil of the PM motor are driven by a 3-phase connection line (for example, a star-shaped connection). The elements of the arms of each coil are controlled so that they do not move up and down simultaneously. Therefore, the inverter circuit for the PM motor is controlled to be driven in two phases by U phase + V phase → V phase + W phase → W phase + U phase. Based on this situation, the inverter circuit for the PM motor turns on the IGBT and flows current to the coil. If the IGBT is turned off for phase conversion, the regenerative current caused by the residual power flows to the diode in the arm. The residual power disappears. Therefore, the inverter circuit for the PM motor requires the IGBT and the diode to be paired. As a result, the inverter circuit for the PM motor has a configuration in which one terminal TE (U) is provided between the upper arm and the lower arm as shown in FIG. 4(a).

另一方面，在圖4(b)中，圖示有與SR馬達的端子U及端子U’電性連接的反相器電路的一部分。具體而言，構成上臂的IGBTQ1與構成下臂的二極體 FWD2會被串聯，在構成上臂的IGBTQ1與構成下臂的二極體FWD2之間設有端子TE(U1)。並且，構成上臂的二極體FWD1與構成下臂的IGBTQ2會被串聯，在構成上臂的二極體FWD1與構成下臂的IGBTQ2之間設有端子TE(U2)。而且，反相器電路的端子TE(U1)會與SR馬達的端子U連接，且反相器電路的端子TE(U2)會與SR馬達的端子U’連接。如此構成的SR馬達用的反相器電路是構成由SR馬達的各相的線圈及H橋接電路所構成的閉電路。為此，例如圖4(b)所示般，開啟被配置成斜掛的上臂的IGBTQ1及下臂的IGBTQ2，在配置於SR馬達的U-U’間的線圈流動電流後(參照圖3的激磁模式)，為了相轉換，使IGBTQ1及IGBTQ2關閉時，需要在上述的閉電路內使線圈的殘留電力消失。此情況，不須在上述的閉電路使線圈的殘留電力消失，在SR馬達用的反相器電路中，在與上述的閉電路不同的閉電路使線圈的殘留電力消失(圖3的減磁模式)。亦即，SR馬達用的反相器電路是如圖3的減磁模式所示般，不是開關元件的IGBTQ1及IGBTQ2，而是可藉由只通電一方向的二極體FWD1及二極體FWD2來構成使線圈的殘留電力消失的別的閉電路。如此，SR馬達用的反相器電路是具有在圖3的激磁模式的閉電路與在圖3的減磁模式的閉電路為不同電路的特徵，藉由此特徵，SR馬達用的反相器電路是如圖4(b)所示般，具有端子TE(U1)及端子TE(U2)的2個端子。基於此情形，如圖4(b)所示般，SR馬達 用的反相器電路是在上臂與下臂之間具有端子TE(U1)及端子TE(U2)的2個端子的點，與如圖4(a)所示般，在上臂與下臂之間具有端子TE(U)的1個端子的PM馬達用的反相器電路不同。 On the other hand, in Fig. 4(b), a part of an inverter circuit electrically connected to the terminal U and the terminal U' of the SR motor is shown. Specifically, the IGBT Q1 constituting the upper arm and the diode constituting the lower arm The FWD 2 is connected in series, and a terminal TE (U1) is provided between the IGBT Q1 constituting the upper arm and the diode FWD 2 constituting the lower arm. Further, the diode FWD1 constituting the upper arm and the IGBT Q2 constituting the lower arm are connected in series, and a terminal TE (U2) is provided between the diode FWD1 constituting the upper arm and the IGBT Q2 constituting the lower arm. Further, the terminal TE (U1) of the inverter circuit is connected to the terminal U of the SR motor, and the terminal TE (U2) of the inverter circuit is connected to the terminal U' of the SR motor. The inverter circuit for the SR motor configured as described above is a closed circuit including a coil of each phase of the SR motor and an H-bridge circuit. Therefore, for example, as shown in FIG. 4( b ), the IGBT Q1 of the upper arm and the IGBT Q2 of the lower arm, which are arranged to be inclined, are turned on, and the current flows between the coils disposed between the U-U′s of the SR motor (refer to FIG. 3 ). In the excitation mode), when the IGBT Q1 and the IGBT Q2 are turned off for phase conversion, it is necessary to make the residual power of the coil disappear in the closed circuit described above. In this case, it is not necessary to cause the residual power of the coil to disappear in the closed circuit described above, and in the inverter circuit for the SR motor, the residual power of the coil is eliminated in the closed circuit different from the closed circuit described above (demagnetization of FIG. 3) mode). That is, the inverter circuit for the SR motor is not the IGBT Q1 and the IGBT Q2 of the switching element as shown in the demagnetization mode of FIG. 3, but the diode FWD1 and the diode FWD2 which can be energized only in one direction. It constitutes another closed circuit that causes the residual power of the coil to disappear. As described above, the inverter circuit for the SR motor is characterized in that the closed circuit having the excitation mode of FIG. 3 and the closed circuit of the demagnetization mode of FIG. 3 are different circuits, whereby the inverter for the SR motor is used. The circuit has two terminals of a terminal TE (U1) and a terminal TE (U2) as shown in Fig. 4 (b). Based on this situation, as shown in Figure 4 (b), SR motor The inverter circuit used is a point having two terminals of the terminal TE (U1) and the terminal TE (U2) between the upper arm and the lower arm, and as shown in Fig. 4 (a), in the upper arm and the lower arm The inverter circuit for the PM motor having one terminal of the terminal TE (U) is different.

基於以上的情形，起因於反相器電路的不同，具體實現本實施形態1的SR馬達用的反相器電路的電子裝置(功率模組)的構成與具體實現PM馬達用的反相器電路的電子裝置(功率模組)的構成是形成不同。在此，在具體實現反相器電路的電子裝置中，適於以往主要被使用的PM馬達的高性能化或小型化可被謀求，但在由低成本化的觀點急速擴大需求的SR馬達中，適於控制SR馬達的電子裝置的高性能化或小型化現況是不太進展。於是，本實施形態1是著眼於由低成本化的觀點急速擴大需求的SR馬達，對於具體實現此SR馬達用的反相器電路的電子裝置及電子裝置的構成零件的半導體裝置之高性能化或小型化下工夫。以下，說明有關下此工夫的本實施形態1的技術思想。特別是本實施形態1的主要的工夫點是在於具體實現SR馬達用的反相器電路的半導體裝置的封裝構造(安裝構造)及其製造方法，首先說明半導體裝置中所含的IGBT或二極體，然後說明有關半導體裝置的封裝構造。而且，說明有關本實施形態1的特徵點之半導體裝置的製造方法。 Based on the above, the configuration of the electronic device (power module) of the inverter circuit for the SR motor of the first embodiment and the inverter circuit for realizing the PM motor are realized by the difference in the inverter circuit. The composition of the electronic device (power module) is different. In the electronic device that realizes the inverter circuit, it is possible to improve the performance and size of the PM motor that is mainly used in the past. However, in the SR motor that rapidly expands the demand from the viewpoint of cost reduction, The current situation of high performance or miniaturization of electronic devices suitable for controlling SR motors is not progressing. In the first embodiment, the SR motor that is rapidly expanding the demand from the viewpoint of cost reduction is used, and the performance of the semiconductor device that is a component of the electronic device and the electronic device that realizes the inverter circuit for the SR motor is improved. Or work under miniaturization. Hereinafter, the technical idea of the first embodiment related to this work will be described. In particular, the main working point of the first embodiment is a package structure (mounting structure) of a semiconductor device in which an inverter circuit for an SR motor is specifically realized, and a method of manufacturing the same, and first, an IGBT or a diode included in the semiconductor device will be described. Body, then explain the package structure of the semiconductor device. Further, a method of manufacturing the semiconductor device according to the feature of the first embodiment will be described.

<IGBT的構造> <Configuration of IGBT>

一邊參照圖面，一邊說明有關構成本實施形態1的反相器電路INV的IGBTQ1及二極體FWD1的構造。在本實施形態1的反相器電路INV中含有IGBTQ1及IGBTQ2，且含有二極體FWD1及二極體FWD2。但，因為IGBTQ1及IGBTQ2是同樣的構成，且二極體FWD1與二極體FWD2是同樣的構成，所以舉IGBTQ1及二極體FWD1為代表例進行說明。 The structure of the IGBT Q1 and the diode FWD1 constituting the inverter circuit INV of the first embodiment will be described with reference to the drawings. The inverter circuit INV of the first embodiment includes the IGBT Q1 and the IGBT Q2, and includes the diode FWD1 and the diode FWD2. However, since the IGBT Q1 and the IGBT Q2 have the same configuration, and the diode FWD1 and the diode FWD2 have the same configuration, the IGBT Q1 and the diode FWD1 will be described as representative examples.

圖5是表示形成有IGBTQ1的半導體晶片CHP1的外形形狀的平面圖。在圖5中顯示半導體晶片CHP1的主面(表面)。如圖5所示般，本實施形態1的半導體晶片CHP1的平面形狀是形成具有長邊LS1及短邊SS1的長方形形狀。而且，在呈長方形形狀的半導體晶片CHP1的表面是形成有呈長方形形狀的射極電極焊墊EP。然後，沿著半導體晶片CHP1的長邊方向來形成有複數的電極焊墊。具體而言，從圖5的左側起配置有閘極電極焊墊GP、溫度檢測用電極焊墊TCP、溫度檢測用電極焊墊TAP、電流檢測用電極焊墊SEP、開爾文檢測用電極焊墊KP，作為此電極焊墊。如此，在呈長方形形狀的半導體晶片CHP1的表面是沿著短邊方向來配置有射極電極焊墊EP及電極焊墊，且沿著長邊方向來形成有複數的電極焊墊。此時，射極電極焊墊EP的大小(平面積)是遠比複數的電極焊墊的各大小還更大。 FIG. 5 is a plan view showing an outer shape of a semiconductor wafer CHP1 on which an IGBT Q1 is formed. The main surface (surface) of the semiconductor wafer CHP1 is shown in FIG. As shown in FIG. 5, the planar shape of the semiconductor wafer CHP1 of the first embodiment is a rectangular shape having a long side LS1 and a short side SS1. Further, on the surface of the semiconductor wafer CHP1 having a rectangular shape, an emitter electrode pad EP having a rectangular shape is formed. Then, a plurality of electrode pads are formed along the longitudinal direction of the semiconductor wafer CHP1. Specifically, the gate electrode pad GP, the temperature detecting electrode pad TCP, the temperature detecting electrode pad TAP, the current detecting electrode pad SEP, and the Kelvin detecting electrode pad KP are disposed from the left side of FIG. As this electrode pad. As described above, the surface of the semiconductor wafer CHP1 having a rectangular shape is such that the electrode electrode pads EP and the electrode pads are arranged along the short side direction, and a plurality of electrode pads are formed along the longitudinal direction. At this time, the size (flat area) of the emitter electrode pad EP is much larger than the respective sizes of the plurality of electrode pads.

圖6是表示與半導體晶片CHP1的表面相反側的背面的平面圖。如圖6所示般，可知在半導體晶片 CHP1的背面全體，形成有長方形形狀的集極電極焊墊CP。 Fig. 6 is a plan view showing a back surface on the opposite side to the surface of the semiconductor wafer CHP1. As shown in Figure 6, it can be seen in the semiconductor wafer A collector electrode pad CP having a rectangular shape is formed on the entire back surface of the CHP1.

接著，說明有關形成於半導體晶片CHP1的電路構成。圖7是表示形成於半導體晶片CHP1的電路的一例的電路圖。如圖7所示般，在半導體晶片CHP1是形成有IGBTQ1、檢測用IGBTQS及溫度檢測用二極體TD。IGBTQ1是主要的IGBT，被使用在圖2所示的SR馬達MT的驅動控制。在此IGBTQ1是形成有射極電極、集極電極及閘極電極。而且，IGBTQ1的射極電極是經由圖5所示的射極電極焊墊EP來與射極端子ET電性連接，IGBTQ1的集極電極是經由圖6所示的集極電極焊墊CP來與集極端子CT電性連接。又，IGBTQ1的閘極電極是經由圖5所示的閘極電極焊墊GP來與閘極端子GT電性連接。 Next, a circuit configuration formed on the semiconductor wafer CHP1 will be described. FIG. 7 is a circuit diagram showing an example of a circuit formed on the semiconductor wafer CHP1. As shown in FIG. 7, the semiconductor wafer CHP1 is formed with an IGBT Q1, a detection IGBT QS, and a temperature detecting diode TD. The IGBT Q1 is a main IGBT and is used for driving control of the SR motor MT shown in Fig. 2 . Here, the IGBT Q1 is formed with an emitter electrode, a collector electrode, and a gate electrode. Further, the emitter electrode of the IGBT Q1 is electrically connected to the emitter terminal ET via the emitter electrode pad EP shown in FIG. 5, and the collector electrode of the IGBT Q1 is connected via the collector electrode pad CP shown in FIG. Set the extreme electrode CT electrical connection. Further, the gate electrode of the IGBT Q1 is electrically connected to the gate terminal GT via the gate electrode pad GP shown in FIG. 5.

IGBTQ1的閘極電極是被連接至圖2所示的閘極控制電路GCC。此時，來自閘極控制電路GCC的訊號會經由閘極端子GT來施加於IGBTQ1的閘極電極，藉此可由閘極控制電路GCC來控制IGBTQ1的開關動作。 The gate electrode of the IGBT Q1 is connected to the gate control circuit GCC shown in FIG. 2. At this time, the signal from the gate control circuit GCC is applied to the gate electrode of the IGBT Q1 via the gate terminal GT, whereby the switching operation of the IGBT Q1 can be controlled by the gate control circuit GCC.

檢測用IGBTQS是為了檢測流動於IGBTQ1的集極-射極間的過電流而設者。亦即，作為反相器電路INV，檢測流動於IGBTQ1的集極-射極間的過電流，為了自過電流所造成的破壞來保護IGBTQ1而設。在此檢測用IGBTQS中，檢測用IGBTQS的集極電極是與IGBTQ1的集極電極電性連接，且檢測用IGBTQS的閘極電極是與 IGBTQ1的閘極電極電性連接。又，檢測用IGBTQS的射極電極是經由圖5所示的電流檢測用電極焊墊SEP來與有別於IGBTQ1的射極電極之電流檢測用端子SET電性連接。此電流檢測用端子SET是被連接至設在外部的電流檢測電路。然後，此電流檢測電路是根據檢測用IGBTQS的射極電極的輸出來檢測IGBTQ1的集極-射極間電流，當過電流流動時，遮斷被施加於IGBTQ1的閘極電極的閘極訊號，而使能保護IGBTQ1。 The detection IGBT QS is provided to detect an overcurrent flowing between the collector and the emitter of the IGBT Q1. In other words, the inverter circuit INV detects an overcurrent flowing between the collector and the emitter of the IGBT Q1, and protects the IGBT Q1 from the damage caused by the overcurrent. In the detection IGBT QS, the collector electrode of the detection IGBT QS is electrically connected to the collector electrode of the IGBT Q1, and the gate electrode of the detection IGBT QS is The gate electrode of IGBT Q1 is electrically connected. Moreover, the emitter electrode of the detection IGBT QS is electrically connected to the current detecting terminal SET different from the emitter electrode of the IGBT Q1 via the current detecting electrode pad SEP shown in FIG. 5 . This current detecting terminal SET is connected to a current detecting circuit provided outside. Then, the current detecting circuit detects the collector-emitter current of the IGBT Q1 based on the output of the emitter electrode of the detecting IGBT QS, and blocks the gate signal applied to the gate electrode of the IGBT Q1 when the overcurrent flows, It also enables protection of IGBT Q1.

具體而言，檢測用IGBTQS是作為用以在負荷短路等使過電流不會流至IGBTQ1的電流檢測元件使用。例如，設計成流動於主要的IGBTQ1的電流與流動於檢測用IGBTQS的電流的電流比會成為IGBTQ1：檢測用IGBTQS=1000：1。亦即，在主要的IGBTQ1流動200A的電流時，在檢測用IGBTQS是有200mA的電流流動。 Specifically, the detection IGBT QS is used as a current detecting element for preventing an overcurrent from flowing to the IGBT Q1 in a load short circuit or the like. For example, the current ratio designed to flow between the main IGBT Q1 and the current flowing through the detection IGBT QS is IGBT Q1: the detection IGBT QS=1000:1. In other words, when the main IGBT Q1 flows a current of 200 A, a current of 200 mA flows in the detection IGBT QS.

實際的應用是外置與檢測用IGBTQS的射極電極電性連接的檢測電阻，將此檢測電阻的兩端的電壓反餽給控制電路。然後，控制電路是當檢測電阻的兩端的電壓形成設定電壓以上時控制成遮斷電源。亦即，當流至主要的IGBTQ1的電流成為過電流時，流至檢測用IGBTQS的電流也增加。此結果，因為流動於檢測電阻的電流也增加，所以檢測電阻的兩端的電壓會變大，當此電壓形成設定電壓以上時，可掌握流至主要的IGBTQ1的電流形成過電流狀態的情形。 The actual application is a detection resistor that is externally electrically connected to the emitter electrode of the detection IGBT QS, and the voltage across the detection resistor is fed back to the control circuit. Then, the control circuit controls the power supply to be interrupted when the voltage across the detection resistor forms a set voltage or higher. That is, when the current flowing to the main IGBT Q1 becomes an overcurrent, the current flowing to the detecting IGBT QS also increases. As a result, since the current flowing through the detecting resistor also increases, the voltage across the detecting resistor increases, and when the voltage is equal to or higher than the set voltage, it is possible to grasp that the current flowing to the main IGBT Q1 forms an overcurrent state.

溫度檢測用二極體TD是為了檢測IGBTQ1的 溫度(廣而言之，半導體晶片CHP1的溫度)而設。亦即，溫度檢測用二極體TD的電壓會依IGBTQ1的溫度而變化，藉此檢測IGBTQ1的溫度。此溫度檢測用二極體TD是藉由在多晶矽導入不同的導電型的雜質來形成pn接合，具有陰極電極(陰極)及陽極電極(陽極)。陰極電極是藉由內部配線經由形成於半導體晶片CHP1的上面的溫度檢測用電極焊墊TCP(參照圖5)來與圖7所示的溫度檢測用端子TCT電性連接。同樣，陽極電極是藉由內部配線經由形成於半導體晶片CHP1的上面的溫度檢測用電極焊墊TAP(參照圖5)來與圖7所示的溫度檢測用端子TAT電性連接。 The temperature detection diode TD is used to detect the IGBT Q1 The temperature (in a broad sense, the temperature of the semiconductor wafer CHP1) is set. That is, the voltage of the temperature detecting diode TD changes depending on the temperature of the IGBT Q1, thereby detecting the temperature of the IGBT Q1. The temperature detecting diode TD is formed by introducing different conductivity type impurities into the polycrystalline silicon to form a pn junction, and has a cathode electrode (cathode) and an anode electrode (anode). The cathode electrode is electrically connected to the temperature detecting terminal TCT shown in FIG. 7 via an internal wiring via a temperature detecting electrode pad TCP (see FIG. 5) formed on the upper surface of the semiconductor wafer CHP1. Similarly, the anode electrode is electrically connected to the temperature detecting terminal TAT shown in FIG. 7 via the internal wiring via the temperature detecting electrode pad TAP (see FIG. 5) formed on the upper surface of the semiconductor wafer CHP1.

溫度檢測用端子TCT及溫度檢測用端子TAT是被連接至設在外部的溫度檢測電路。此溫度檢測電路是根據被連接至溫度檢測用二極體TD的陰極電極及陽極電極之溫度檢測用端子TCT及溫度檢測用端子TAT間的輸出，來間接地檢測出IGBTQ1的溫度，當檢測的溫度形成某一定溫度以上時，遮斷被施加於IGBTQ1的閘極電極之閘極訊號，藉此保護IGBTQ1。 The temperature detecting terminal TCT and the temperature detecting terminal TAT are connected to a temperature detecting circuit provided outside. The temperature detecting circuit indirectly detects the temperature of the IGBT Q1 based on the output between the temperature detecting terminal TCT and the temperature detecting terminal TAT connected to the cathode electrode and the anode electrode of the temperature detecting diode TD, and detects the temperature of the IGBT Q1. When the temperature is formed at a certain temperature or higher, the gate signal applied to the gate electrode of the IGBT Q1 is blocked, thereby protecting the IGBT Q1.

如上述般，由pn接合二極體所構成的溫度檢測用二極體TD是具有一旦施加某一定值以上的順方向電壓，則流動於溫度檢測用二極體TD的順方向電流會急劇增加的特性。而且，順方向電流急劇開始流動的電壓值是依溫度而變化，一旦溫度上昇，則此電壓值會降低。於是，本實施形態1是利用溫度檢測用二極體TD的此特 性。亦即，在溫度檢測用二極體流動一定的電流，測定溫度檢測用二極體TD的兩端的電壓值，藉此可間接性地溫度監測。實際的應用是將如此測定之溫度檢測二極體TD的電壓值(溫度訊號)反餽給控制電路，藉此控制元件動作溫度不會超過保證值(例如，150℃~175℃)。 As described above, the temperature detecting diode TD composed of the pn junction diode has a forward voltage that flows through the temperature detecting diode TD when the forward voltage is applied to a certain value or more. Characteristics. Further, the voltage value at which the forward current suddenly starts to flow changes depending on the temperature, and as the temperature rises, the voltage value decreases. Therefore, in the first embodiment, the special temperature detecting diode TD is used. Sex. In other words, a constant current is applied to the temperature detecting diode, and the voltage values at both ends of the temperature detecting diode TD are measured, whereby the temperature monitoring can be indirectly. The practical application is to feed back the voltage value (temperature signal) of the temperature detecting diode TD thus measured to the control circuit, whereby the operating temperature of the control element does not exceed the guaranteed value (for example, 150 ° C to 175 ° C).

其次，在圖7中，IGBTQ1的射極電極是與射極端子ET電性連接，且與有別於射極端子ET的另外的端子之開爾文端子KT也電性連接。此開爾文端子KT是藉由內部配線來與形成於半導體晶片CHP1的上面的開爾文檢測用電極焊墊KP(參照圖5)電性連接。因此，IGBTQ1的射極電極是經由開爾文檢測用電極焊墊KP來與開爾文端子KT電性連接。此開爾文端子KT是作為主要的IGBTQ1的檢查用端子使用。亦即，在主要的IGBTQ1中流動大電流的檢查時，從IGBTQ1的射極端子ET取電壓感測時，由於在射極端子ET有大電流流動，因此配線電阻所引起的電壓降下不能無視，難以測定正確的ON電壓。於是，在本實施形態1中，雖與IGBTQ1的射極端子ET電性連接，但設有開爾文端子KT作為不流動大電流的電壓感測端子。亦即，在流動大電流的檢查時，藉由從開爾文端子KT測定射極電極的電壓，可不受大電流的影響，測定IGBTQ1的ON電壓。而且，開爾文端子KT是亦作為閘極驅動輸出用的電性獨立的基準銷使用。 Next, in FIG. 7, the emitter electrode of the IGBT Q1 is electrically connected to the emitter terminal ET, and is also electrically connected to the Kelvin terminal KT which is different from the other terminal of the emitter terminal ET. The Kelvin terminal KT is electrically connected to the Kelvin detecting electrode pad KP (see FIG. 5) formed on the upper surface of the semiconductor wafer CHP1 by internal wiring. Therefore, the emitter electrode of the IGBT Q1 is electrically connected to the Kelvin terminal KT via the Kelvin detecting electrode pad KP. This Kelvin terminal KT is used as a test terminal of the main IGBT Q1. In other words, when the high-current current is detected in the main IGBT Q1, when the voltage is sensed from the emitter terminal ET of the IGBT Q1, since a large current flows in the emitter terminal ET, the voltage drop caused by the wiring resistance cannot be ignored. It is difficult to determine the correct ON voltage. Therefore, in the first embodiment, the emitter terminal ET of the IGBT Q1 is electrically connected, but the Kelvin terminal KT is provided as a voltage sensing terminal that does not flow a large current. That is, when the flow current is checked, the voltage of the emitter electrode is measured from the Kelvin terminal KT, and the ON voltage of the IGBT Q1 can be measured without being affected by a large current. Further, the Kelvin terminal KT is also used as an electrically independent reference pin for gate drive output.

以上，若根據本實施形態1的半導體晶片CHP1，則由於構成可與包含電流檢測電路及溫度檢測電 路等的控制電路連接，因此可提升半導體晶片CHP1中所含的IGBTQ1的動作可靠度。 As described above, according to the semiconductor wafer CHP1 of the first embodiment, the configuration can include the current detecting circuit and the temperature detecting circuit. The control circuit of the circuit or the like is connected, so that the operational reliability of the IGBT Q1 included in the semiconductor wafer CHP1 can be improved.

<IGBT的裝置構造> <Device configuration of IGBT>

接著，說明有關IGBTQ1的裝置構造。圖8是表示本實施形態1的IGBTQ1的裝置構造的剖面圖。在圖8中，IGBTQ1是具有形成於半導體晶片的背面之集極電極CE(集極電極焊墊CP)，在此集極電極CE上形成有p+型半導體領域PR1。在p+型半導體領域PR1上形成有n+型半導體領域NR1，在此n+型半導體領域NR1上形成有n-型半導體領域NR2。而且，在n-型半導體領域NR2上形成有p型半導體領域PR2，貫通此p型半導體領域PR2，形成有到達n-型半導體領域NR2的溝TR。更形成有整合於溝TR而成為射極領域的n+型半導體領域ER。在溝TR的內部，例如形成有由氧化矽膜所構成的閘極絕緣膜GOX，經由此閘極絕緣膜GOX來形成閘極電極GE。此閘極電極GE是例如由多晶矽膜所形成，以能夠埋入溝TR的方式形成。並且，在圖8中，雖是顯示溝閘構造，但並非限於此，例如，雖未圖示，但亦可為使用形成於矽基板上的平閘構造之IGBT。 Next, the device configuration of the IGBT Q1 will be described. Fig. 8 is a cross-sectional view showing the structure of an apparatus of the IGBT Q1 of the first embodiment. In FIG. 8, the IGBT Q1 has a collector electrode CE (collector electrode pad CP) formed on the back surface of the semiconductor wafer, and a p + -type semiconductor region PR1 is formed on the collector electrode CE. An n + -type semiconductor region NR1 is formed on the p + -type semiconductor region PR1, and an n - -type semiconductor region NR2 is formed on the n + -type semiconductor region NR1. Further, the n - -type semiconductor is formed on the p-type semiconductor art NR2 the PR2 art, through the PR2 art this p-type semiconductor, is formed which reaches the n - -type semiconductor trench TR NR2 the art. Further, there is an n + -type semiconductor field ER which is integrated in the trench TR and becomes an emitter field. Inside the trench TR, for example, a gate insulating film GOX composed of a hafnium oxide film is formed, and a gate electrode GE is formed via the gate insulating film GOX. This gate electrode GE is formed, for example, of a polycrystalline germanium film, and is formed so as to be able to embed the trench TR. Further, although the trench gate structure is shown in FIG. 8, the present invention is not limited thereto. For example, although not shown, an IGBT having a flat gate structure formed on the germanium substrate may be used.

在如此構成的IGBTQ1中，閘極電極GE是經由圖5所示的閘極電極焊墊GP來與閘極端子GT連接。同樣，成為射極領域的n+型半導體領域ER是經由射極電極EE(射極電極焊墊EP)來與射極端子ET電性連接。 成為集極領域的p+型半導體領域PR1是與形成於半導體晶片的背面之集極電極CE電性連接。 In the IGBT Q1 configured as above, the gate electrode GE is connected to the gate terminal GT via the gate electrode pad GP shown in FIG. 5. Similarly, the n + -type semiconductor field ER in the field of the emitter is electrically connected to the emitter terminal ET via the emitter electrode EE (the emitter electrode pad EP). The p + -type semiconductor field PR1 which is in the collector field is electrically connected to the collector electrode CE formed on the back surface of the semiconductor wafer.

如此構成的IGBTQ1是兼備功率MOSFET的高速開關特性及電壓驅動特性、及雙極電晶體的低ON電壓特性。 The IGBT Q1 configured as described above has both high-speed switching characteristics and voltage driving characteristics of the power MOSFET and low ON voltage characteristics of the bipolar transistor.

另外，n+型半導體領域NR1是被稱為緩衝層。此n+型半導體領域NR1是當IGBTQ1關斷時，從p型半導體領域PR2成長至n-型半導體領域NR2內的空乏層是為了防止接觸到n-型半導體領域NR2的下層所形成的p+型半導體領域PR1之穿通現象而設。並且，為了從p+型半導體領域PR1往n-型半導體領域NR2之電洞注入量的制限等的目的，而設有n+型半導體領域NR1。 Further, the n + -type semiconductor field NR1 is referred to as a buffer layer. In the n + -type semiconductor field NR1, when the IGBT Q1 is turned off, the vacant layer growing from the p-type semiconductor field PR2 to the n - type semiconductor field NR2 is to prevent contact with the p + formed by the lower layer of the n - -type semiconductor field NR2. In the semiconductor field, PR1 is punched through. Further, in order from the p + -type semiconductor art PR1 to n - type object made of such limited field of semiconductors NR2 injection amount of holes, and is provided with n + -type semiconductor field NR1.

<IGBT的動作> <Action of IGBT>

其次，說明有關本實施形態1的IGBTQ1的動作。首先，說明有關IGBTQ1接通的動作。在圖8中，藉由在閘極電極GE與成為射極領域的n+型半導體領域ER之間施加充分的正的電壓，形成溝閘構造的MOSFET會接通。此情況，構成集極領域的p+型半導體領域PR1與n-型半導體領域NR2之間會被順偏壓，引起從p+型半導體領域PR1往n-型半導體領域NR2電洞注入。接著，僅與被注入的電洞的正電荷相同的電子會集聚於n-型半導體領域NR2。藉此，發生n-型半導體領域NR2的電阻降低(傳導度調變)，IGBTQ1成為開啟狀態。 Next, the operation of the IGBT Q1 according to the first embodiment will be described. First, the operation of turning on the IGBT Q1 will be described. In FIG. 8, a MOSFET having a trench gate structure is turned on by applying a sufficient positive voltage between the gate electrode GE and the n + -type semiconductor region ER in the field of the emitter. In this case, the PR + type semiconductor field PR1 and the n − type semiconductor field NR2 constituting the collector field are biased, causing NR2 hole injection from the p + type semiconductor field PR1 to the n − type semiconductor field. Then, only electrons having the same positive charge as the injected hole are concentrated in the n - -type semiconductor field NR2. As a result, the resistance of the n - type semiconductor field NR2 is lowered (conductivity modulation), and the IGBT Q1 is turned on.

雖ON電壓是施加p+型半導體領域PR1及n-型半導體領域NR2的接合電壓，但因為n-型半導體領域NR2的電阻值會藉由傳導度調變而降低1位數以上，所以佔據ON電阻的大部分那樣的高耐壓是IGBTQ1要比功率MOSFET更會成為低ON電壓。因此，可知IGBTQ1是對於高耐壓化為有效的裝置。亦即，功率MOSFET為了謀求高耐壓化，需要增厚成為漂移層的磊晶層的厚度，但此情況ON電阻也會上昇。相對於此，在IGBTQ1中，為了謀求高耐壓化，即使增厚n-型半導體領域NR2的厚度，也會在IGBTQ1的開啟動作時產生傳導度調變。因此，可比功率MOSFET更降低ON電阻。亦即，若根據IGBTQ1，則與功率MOSFET作比較，即使在謀求高耐壓化時，也可實現低ON電阻的裝置。 The ON voltage is a bonding voltage applied to the PR + -type semiconductor field PR1 and the n - -type semiconductor field NR2. However, since the resistance value of the n - -type semiconductor field NR2 is reduced by one degree or more by the conductivity modulation, it occupies ON. The high withstand voltage of most of the resistors is that the IGBT Q1 will become a lower ON voltage than the power MOSFET. Therefore, it is understood that the IGBT Q1 is an effective device for high withstand voltage. In other words, in order to achieve high withstand voltage, the power MOSFET needs to increase the thickness of the epitaxial layer which becomes the drift layer. However, in this case, the ON resistance also rises. On the other hand, in the IGBT Q1, in order to increase the withstand voltage, even if the thickness of the n − -type semiconductor field NR 2 is increased, the conductivity is changed during the turn-on operation of the IGBT Q1 . Therefore, the ON resistance can be reduced more than the power MOSFET. In other words, according to the IGBT Q1, a device having a low ON resistance can be realized even when a high withstand voltage is obtained in comparison with the power MOSFET.

接著，說明有關IGBTQ1關斷的動作。若使閘極電極GE與成為射極領域的n+型半導體領域ER之間的電壓降低，則形成溝閘構造的MOSFET會關斷。此情況，從p+型半導體領域PR1往n-型半導體領域NR2的電洞注入會停止，已被注入的電洞也壽命盡而減少。殘留的電洞是往p+型半導體領域PR1直接流出(尾電流)，在流出完了的時間點，IGBTQ1是成為關閉狀態。如此一來，可使IGBTQ1進行ON/OFF動作。 Next, the operation of turning off the IGBT Q1 will be described. When the voltage between the gate electrode GE and the n + -type semiconductor region ER in the emitter region is lowered, the MOSFET forming the trench gate structure is turned off. In this case, the hole injection from the p + -type semiconductor field PR1 to the n - -type semiconductor field NR2 is stopped, and the hole that has been injected is also reduced in life. The residual hole flows directly to the p + type semiconductor field PR1 (tail current), and when the outflow is completed, the IGBT Q1 is turned off. In this way, the IGBT Q1 can be turned ON/OFF.

<二極體的構造> <Configuration of diodes>

其次，圖9是表示形成有二極體FWD1的半導體晶片 CHP2的外形形狀的平面圖。在圖9中，顯示有半導體晶片CHP2的主面(表面)。如圖9所示般，本實施形態1的半導體晶片CHP2的平面形狀是形成具有長邊LS2及短邊SS2的長方形形狀。而且，在呈長方形形狀的半導體晶片CHP2的表面是形成有呈長方形形狀的陽極電極焊墊ADP。另一方面，雖未圖示，但實際在與半導體晶片CHP2的表面相反側的背面全體，形成有長方形形狀的陰極電極焊墊。 Next, FIG. 9 shows a semiconductor wafer in which a diode FWD1 is formed. A plan view of the shape of the CHP2. In Fig. 9, the main surface (surface) of the semiconductor wafer CHP2 is shown. As shown in FIG. 9, the planar shape of the semiconductor wafer CHP2 of the first embodiment is a rectangular shape having a long side LS2 and a short side SS2. Further, an anode electrode pad ADP having a rectangular shape is formed on the surface of the rectangular semiconductor wafer CHP2. On the other hand, although not shown, a rectangular cathode electrode pad is actually formed on the entire back surface opposite to the surface of the semiconductor wafer CHP2.

接著，說明有關二極體FWD1的裝置構造。圖10是表示二極體FWD1的裝置構造的剖面圖。在圖10中，在半導體晶片的背面形成有陰極電極CDE(陰極電極焊墊CDP)，在此陰極電極CDE上形成有n+型半導體領域NR3。而且，在n+型半導體領域NR3上形成有n-型半導體領域NR4，在n-型半導體領域NR4上形成有p型半導體領域PR3。在p型半導體領域PR3及p-型半導體領域PR4上形成有陽極電極ADE(陽極電極焊墊ADP)。陽極電極ADE是例如由鋁-矽所構成。 Next, the device configuration of the diode FWD1 will be described. Fig. 10 is a cross-sectional view showing the structure of the device of the diode FWD1. In FIG. 10, a cathode electrode CDE (cathode electrode pad CDP) is formed on the back surface of the semiconductor wafer, and an n + -type semiconductor region NR3 is formed on the cathode electrode CDE. Further, an n − -type semiconductor region NR 4 is formed on the n + -type semiconductor region NR 3 , and a p-type semiconductor region PR 3 is formed on the n − -type semiconductor region NR 4 . An anode electrode ADE (anode electrode pad ADP) is formed in the p-type semiconductor field PR3 and the p - type semiconductor field PR4. The anode electrode ADE is made of, for example, aluminum-rhodium.

<二極體的動作> <Action of the diode>

根據如此構成的二極體FWD1，一旦在陽極電極ADE施加正電壓，在陰極電極CDE施加負電壓，則n-型半導體領域NR4與p型半導體領域PR3之間的pn接合會被順偏壓，電流流動。另一方面，一旦在陽極電極ADE施加負電壓，在陰極電極CDE施加正電壓，則n-型半導體領 域NR4與p型半導體領域PR3之間的pn接合會被逆偏壓，電流不流動。如此一來，可使具有整流機能的二極體FWD1動作。 According to the diode FWD1 thus constituted, once a positive voltage is applied to the anode electrode ADE and a negative voltage is applied to the cathode electrode CDE, the pn junction between the n − -type semiconductor region NR4 and the p-type semiconductor region PR3 is biased. Current flows. On the other hand, once a negative voltage is applied to the anode electrode ADE and a positive voltage is applied to the cathode electrode CDE, the pn junction between the n - -type semiconductor field NR4 and the p-type semiconductor region PR3 is reversely biased, and current does not flow. In this way, the diode FWD1 having the rectifying function can be operated.

<實施形態1的半導體裝置的安裝構成> <Installation Configuration of Semiconductor Device According to Embodiment 1>

本實施形態1的半導體裝置是有關圖2所示的反相器電路INV，將成為反相器電路INV的構成要素之1個的IGBT及1個的二極體予以1封裝化者。亦即，藉由使用6個本實施形態1的半導體裝置，構成成為驅動3相馬達的3相的反相器電路INV之電子裝置(功率模組)。 In the semiconductor device of the first embodiment, the inverter circuit INV shown in FIG. 2 is one in which one IGBT and one diode which are constituent elements of the inverter circuit INV are packaged. In other words, by using the semiconductor devices of the first embodiment, an electronic device (power module) that is a three-phase inverter circuit INV that drives a three-phase motor is used.

圖11是表示本實施形態1的半導體裝置PAC1的外觀構成的圖。具體而言，圖11(a)是由本實施形態1的半導體裝置PAC1的表面(上面)側所見的平面圖，圖11(b)是由本實施形態1的半導體裝置PAC1的一側面所見的側面圖，圖11(c)是由本實施形態1的半導體裝置PAC1的背面(下面)側所見的平面圖。 FIG. 11 is a view showing an external configuration of a semiconductor device PAC1 according to the first embodiment. Specifically, Fig. 11(a) is a plan view of the surface (upper surface) side of the semiconductor device PAC1 of the first embodiment, and Fig. 11(b) is a side view of the semiconductor device PAC1 of the first embodiment. Fig. 11 (c) is a plan view showing the back surface (lower surface) side of the semiconductor device PAC1 of the first embodiment.

如圖11所示般，本實施形態1的半導體裝置PAC1是具有呈矩形形狀之由樹脂所構成的密封體MR。此密封體MR是具有：圖11(a)所示的上面、及與此上面相反側之圖11(c)所示的下面、及在其厚度方向位於上面與下面之間的第1側面及與第1側面對向的第2側面。在圖11(a)及圖11(c)中，圖示有構成第1側面的邊S1，且圖示有構成第2側面的邊S2。邊S1是延伸於x方向，且邊S2也延伸於x方向。而且，密封體MR是 具有：與第1側面及第2側面交叉的第3側面(圖11(b))、及與第1側面及第2側面交叉，且與第3側面對向的第4側面。在圖11(a)及圖11(c)中，圖示有構成第3側面的邊S3，且圖示有構成第4側面的邊S4。亦即，密封體MR是具有：延伸於與x方向交叉的y方向之邊S3、及與此邊S3對向的邊S4。 As shown in FIG. 11, the semiconductor device PAC1 of the first embodiment is a sealing body MR having a rectangular shape and made of a resin. The sealing body MR has a first side surface as shown in FIG. 11(a), a lower surface shown in FIG. 11(c) opposite to the upper surface, and a first side surface between the upper surface and the lower surface in the thickness direction thereof. The second side opposite to the first side. In FIGS. 11(a) and 11(c), the side S1 constituting the first side surface is illustrated, and the side S2 constituting the second side surface is illustrated. Side S1 extends in the x direction and side S2 also extends in the x direction. Moreover, the sealing body MR is The third side surface ( FIG. 11( b )) intersecting the first side surface and the second side surface, and the fourth side surface that intersects the first side surface and the second side surface and faces the third side surface. In Fig. 11 (a) and Fig. 11 (c), the side S3 constituting the third side surface is shown, and the side S4 constituting the fourth side surface is shown. That is, the sealing body MR has a side S4 extending in the y direction crossing the x direction and a side S4 facing the side S3.

在此，本實施形態1的半導體裝置PAC1是如圖11所示般，複數的導線LD1A的各自一部分及複數的導線LD1B的各自一部分會從第1側面突出，且複數的導線LD2的各自一部分會從第2側面突出。此時，導線LD1A是構成射極端子ET，導線LD1B是構成陽極端子AT，導線LD2是構成訊號端子SGT。而且，平面視，導線LD1A及導線LD1B是沿著延伸於x方向(第1方向)的密封體MR的邊S1來排列配置。此時，構成射極端子ET的複數的導線LD1A的各自寬度是比構成訊號端子SGT的複數的導線LD2的各自寬度更大。同樣，構成陽極端子AT的複數的導線LD1B的各自寬度是比構成訊號端子SGT的複數的導線LD2的各自寬度更大。這是考慮因為在射極端子ET及陽極端子AT流動大電流，所以需要儘可能降低電阻，相對的在訊號端子SGT只流動微小的電流。另外，在本實施形態1的半導體裝置PAC1中，如圖11(a)所示般，沿著密封體MR的邊S3及邊S4而配置的導線是不存在。 Here, in the semiconductor device PAC1 of the first embodiment, as shown in FIG. 11, a part of the plurality of wires LD1A and a part of the plurality of wires LD1B protrude from the first side face, and a part of the plurality of wires LD2 will be It protrudes from the second side. At this time, the wire LD1A constitutes the emitter terminal ET, the wire LD1B constitutes the anode terminal AT, and the wire LD2 constitutes the signal terminal SGT. Further, in plan view, the wire LD1A and the wire LD1B are arranged side by side along the side S1 of the sealing body MR extending in the x direction (first direction). At this time, the respective widths of the plurality of wires LD1A constituting the emitter terminal ET are larger than the respective widths of the plurality of wires LD2 constituting the signal terminal SGT. Similarly, the respective widths of the plurality of wires LD1B constituting the anode terminal AT are larger than the respective widths of the plurality of wires LD2 constituting the signal terminal SGT. This is because it is considered that a large current flows in the emitter terminal ET and the anode terminal AT, so it is necessary to reduce the resistance as much as possible, and relatively only a small current flows at the signal terminal SGT. Further, in the semiconductor device PAC1 of the first embodiment, as shown in FIG. 11(a), the wires arranged along the side S3 and the side S4 of the sealing body MR do not exist.

本實施形態1的半導體裝置PAC1是如圖11 (c)所示般，晶片搭載部TAB1及晶片搭載部TAB2會從密封體MR的背面露出。此晶片搭載部TAB1及晶片搭載部TAB2是被配置成藉由密封體MR來物理性地分離，此結果，晶片搭載部TAB1與晶片搭載部TAB2是被電性分離。亦即，本實施形態1的半導體裝置PAC1是具有被密封體MR電性分離的晶片搭載部TAB1及晶片搭載部TAB2，且晶片搭載部TAB1的背面及晶片搭載部TAB2的背面是從密封體MR的背面露出。而且，如圖11(c)所示般，本實施形態1的半導體裝置PAC1是在從密封體MR露出的晶片搭載部TAB1形成有複數的缺口部CS1，且在從密封體MR露出的晶片搭載部TAB2也形成有複數的缺口部CS2。 The semiconductor device PAC1 of the first embodiment is as shown in FIG. As shown in (c), the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are exposed from the back surface of the sealing body MR. The wafer mounting portion TAB1 and the wafer mounting portion TAB2 are disposed to be physically separated by the sealing body MR. As a result, the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are electrically separated. In other words, the semiconductor device PAC1 of the first embodiment has the wafer mounting portion TAB1 and the wafer mounting portion TAB2 that are electrically separated by the sealing body MR, and the back surface of the wafer mounting portion TAB1 and the back surface of the wafer mounting portion TAB2 are from the sealing body MR. The back is exposed. Further, as shown in FIG. 11C, the semiconductor device PAC1 of the first embodiment has a plurality of notch portions CS1 formed in the wafer mounting portion TAB1 exposed from the sealing body MR, and is mounted on the wafer exposed from the sealing body MR. The portion TAB2 is also formed with a plurality of notch portions CS2.

接著，說明有關本實施形態1的半導體裝置PAC1的內部構造。圖12是表示本實施形態1的半導體裝置PAC1的內部構造的圖。具體而言，圖12(a)為對應於平面圖，圖12(b)為對應於圖12(a)的A-A線的剖面圖，圖12(c)為對應於圖12(a)的B-B線的剖面圖。 Next, the internal structure of the semiconductor device PAC1 according to the first embodiment will be described. FIG. 12 is a view showing an internal structure of a semiconductor device PAC1 according to the first embodiment. Specifically, FIG. 12(a) corresponds to a plan view, FIG. 12(b) is a cross-sectional view corresponding to the AA line of FIG. 12(a), and FIG. 12(c) corresponds to the BB line of FIG. 12(a). Sectional view.

首先，在圖12(a)中，射極端子ET之導線LD1A是具有：被密封體MR所密封的部分(第1部分)、及從密封體MR露出的部分(第2部分)，導線LD1A的第2部分是形成有縫隙，藉此分割成複數。同樣，陽極端子AT之導線LD1B是具有：被密封體MR所密封的部分(第3部分)、及從密封體MR露出的部分 (第4部分)，導線LD1B的第4部分是形成有縫隙，藉此分割成複數。 First, in FIG. 12(a), the wire LD1A of the emitter terminal ET has a portion (first portion) sealed by the sealing body MR and a portion (second portion) exposed from the sealing body MR, and the wire LD1A The second part is formed with a slit, thereby dividing into plural numbers. Similarly, the lead wire LD1B of the anode terminal AT has a portion (third portion) sealed by the sealing body MR and a portion exposed from the sealing body MR. (Part 4), the fourth portion of the wire LD1B is formed with a slit, thereby being divided into plural numbers.

其次，在圖12(a)中，在密封體MR的內部是配置有矩形形狀的晶片搭載部TAB1及矩形形狀的晶片搭載部TAB2，晶片搭載部TAB1與晶片搭載部TAB2是彼此被分離。該等的晶片搭載部TAB1及晶片搭載部TAB2是亦具有作為用以提高放熱效率的散熱器(Heat spreader)之機能，例如，由以熱傳導率高的銅作為主成分的材料所構成。此時，本實施形態1的半導體裝置PAC1是如圖12(a)所示般，在晶片搭載部TAB1形成有缺口部CS1，且在晶片搭載部TAB2形成有缺口部CS2。 Next, in FIG. 12(a), inside the sealing body MR, a rectangular wafer mounting portion TAB1 and a rectangular wafer mounting portion TAB2 are disposed, and the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are separated from each other. The wafer mounting portion TAB1 and the wafer mounting portion TAB2 also have a function as a heat spreader for improving the heat radiation efficiency. For example, the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are made of a material having copper having a high thermal conductivity as a main component. In the semiconductor device PAC1 of the first embodiment, as shown in FIG. 12(a), the chip mounting portion TAB1 is formed with a notch portion CS1, and the wafer mounting portion TAB2 is formed with a notch portion CS2.

在此，在本說明書所謂的「主成分」是意指構成構件的構成材料之中，含最多的材料成分，例如所謂「以銅作為主成分的材料」是意味構件的材料含銅最多。在本說明書使用「主成分」的言詞之意圖是為了表現例如構件基本上由銅所構成，但不排除含其他雜質的情況。 Here, the term "main component" as used in the present specification means the most abundant material component among the constituent materials of the constituent members. For example, "the material containing copper as a main component" means that the material of the member contains the most copper. The term "principal component" is used in this specification to mean that, for example, the member is basically composed of copper, but the case of containing other impurities is not excluded.

在晶片搭載部TAB1上，經由導電性接著材ADH1來搭載形成有IGBT的半導體晶片CHP1。此時，將搭載有半導體晶片CHP1的面定義為晶片搭載部TAB1的第1上面，將與此第1上面相反側的面定義為第1下面。此情況，半導體晶片CHP1是被搭載於晶片搭載部TAB1的第1上面上。具體而言，形成有IGBT的半導體晶片CHP1是以被形成於半導體晶片CHP1的背面之集極電極CE(集極電極焊墊CP)(參照圖6及圖8)會經由導電 性黏著劑ADH1來與晶片搭載部TAB1的第1上面接觸的方式配置。此情況，被形成於半導體晶片CHP1的表面之射極電極焊墊EP及複數的電極焊墊會形成朝上。 The semiconductor wafer CHP1 on which the IGBT is formed is mounted on the wafer mounting portion TAB1 via the conductive bonding material ADH1. At this time, the surface on which the semiconductor wafer CHP1 is mounted is defined as the first upper surface of the wafer mounting portion TAB1, and the surface on the opposite side to the first upper surface is defined as the first lower surface. In this case, the semiconductor wafer CHP1 is mounted on the first upper surface of the wafer mounting portion TAB1. Specifically, the semiconductor wafer CHP1 on which the IGBT is formed is electrically connected via the collector electrode CE (collector electrode pad CP) formed on the back surface of the semiconductor wafer CHP1 (see FIGS. 6 and 8). The adhesive ADH1 is disposed in contact with the first upper surface of the wafer mounting portion TAB1. In this case, the emitter electrode pad EP formed on the surface of the semiconductor wafer CHP1 and the plurality of electrode pads are formed upward.

另一方面，在晶片搭載部TAB2上，經由導電性接著材ADH1來搭載形成有二極體的半導體晶片CHP2。此時，將搭載有半導體晶片CHP2的面定義為晶片搭載部TAB2的第2上面，將與此第2上面相反側的面定義為第2下面。此情況，半導體晶片CHP2是被搭載於晶片搭載部TAB2的第2上面上。具體而言，形成有二極體的半導體晶片CHP2是以形成於半導體晶片CHP2的背面的陰極電極焊墊能夠經由導電性黏著劑ADH1來與晶片搭載部TAB2的第2上面接觸的方式配置。此情況，形成於半導體晶片CHP2的表面之陽極電極焊墊ADP會朝上。因此，在本實施形態1的半導體裝置PAC1中，晶片搭載部TAB1與晶片搭載部TAB2會被電性分離。基於此情形，被配置成與晶片搭載部TAB1的第1上面接觸的半導體晶片CHP1的集極電極CE(集極電極焊墊CP)(參照圖6及圖8)、及被配置成與晶片搭載部TAB2的第2上面接觸的半導體晶片CHP2的陰極電極焊墊，是形成電性分離。 On the other hand, the semiconductor wafer CHP2 on which the diode is formed is mounted on the wafer mounting portion TAB2 via the conductive bonding material ADH1. At this time, the surface on which the semiconductor wafer CHP2 is mounted is defined as the second upper surface of the wafer mounting portion TAB2, and the surface on the opposite side to the second upper surface is defined as the second lower surface. In this case, the semiconductor wafer CHP2 is mounted on the second upper surface of the wafer mounting portion TAB2. Specifically, the semiconductor wafer CHP2 on which the diode is formed is disposed such that the cathode electrode pad formed on the back surface of the semiconductor wafer CHP2 can be in contact with the second upper surface of the wafer mounting portion TAB2 via the conductive adhesive ADH1. In this case, the anode electrode pad ADP formed on the surface of the semiconductor wafer CHP2 faces upward. Therefore, in the semiconductor device PAC1 of the first embodiment, the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are electrically separated. In this case, the collector electrode CE (collector electrode pad CP) of the semiconductor wafer CHP1 that is placed in contact with the first upper surface of the wafer mounting portion TAB1 (see FIGS. 6 and 8) and the wafer are mounted on the wafer. The cathode electrode pad of the semiconductor wafer CHP2 that is in contact with the second upper portion of the portion TAB2 is electrically separated.

另外，在圖12(a)中，晶片搭載部TAB1的平面積是比形成有IGBT的半導體晶片CHP1的平面積更大，且晶片搭載部TAB2的平面積是比形成有二極體的半導體晶片CHP2的平面積更大。 In addition, in FIG. 12(a), the flat area of the wafer mounting portion TAB1 is larger than the flat area of the semiconductor wafer CHP1 on which the IGBT is formed, and the flat area of the wafer mounting portion TAB2 is larger than that of the semiconductor wafer in which the diode is formed. The flat area of CHP2 is larger.

接著，如圖12(a)所示般，在半導體晶片CHP1的射極電極焊墊EP上，經由導電性接著材來配置導電性構件的夾子(clip)CLP1。然後，此夾子CLP1是經由導電性接著材來與射極端子ET連接。因此，半導體晶片CHP1的射極電極焊墊EP是經由夾子CLP1來與射極端子ET電性連接。此夾子CLP1是例如由以銅為主成分的板狀構件所構成。亦即，由於本實施形態1是從半導體晶片CHP1的射極電極焊墊EP到射極端子ET流動大電流，因此以能夠流動大電流的方式，使用可確保大的面積之夾子CLP1。 Next, as shown in FIG. 12(a), a clip CLP1 of a conductive member is placed on the emitter electrode pad EP of the semiconductor wafer CHP1 via a conductive adhesive. Then, the clip CLP1 is connected to the emitter terminal ET via a conductive adhesive. Therefore, the emitter electrode pad EP of the semiconductor wafer CHP1 is electrically connected to the emitter terminal ET via the clip CLP1. This clip CLP1 is composed of, for example, a plate-like member mainly composed of copper. In other words, in the first embodiment, since a large current flows from the emitter electrode pad EP of the semiconductor wafer CHP1 to the emitter terminal ET, the clip CLP1 capable of securing a large area is used so that a large current can flow.

又，如圖12(a)所示般，在半導體晶片CHP1的表面是形成有複數的電極焊墊，此複數的電極焊墊是分別藉由導電性構件的接線W來與訊號端子SGT電性連接。具體而言，複數的電極焊墊是包含：閘極電極焊墊GP、溫度檢測用電極焊墊TCP、溫度檢測用電極焊墊TAP、電流檢測用電極焊墊SEP、開爾文檢測用電極焊墊KP。而且，閘極電極焊墊GP是以接線W來與訊號端子SGT之1個的閘極端子GT電性連接。同樣，溫度檢測用電極焊墊TCP是以接線W來與訊號端子SGT之1個的溫度檢測用端子TCT電性連接，溫度檢測用電極焊墊TAP是以接線W來與訊號端子SGT之1個的溫度檢測用端子TAT電性連接。又，電流檢測用電極焊墊SEP是以接線W來與訊號端子SGT之1個的電流檢測用端子SET電性連接，開爾文檢測用電極焊墊KP是以接線W來與開爾文 端子KT電性連接。此時，接線W是例如由以金、銅或鋁為主成分的導電構件所構成。 Further, as shown in FIG. 12(a), a plurality of electrode pads are formed on the surface of the semiconductor wafer CHP1, and the plurality of electrode pads are electrically connected to the signal terminals SGT by the wires W of the conductive members, respectively. connection. Specifically, the plurality of electrode pads include: a gate electrode pad GP, a temperature detecting electrode pad TCP, a temperature detecting electrode pad TAP, a current detecting electrode pad SEP, and a Kelvin detecting electrode pad KP. . Further, the gate electrode pad GP is electrically connected to the gate terminal GT of one of the signal terminals SGT by the wire W. Similarly, the temperature detecting electrode pad TCP is electrically connected to the temperature detecting terminal TCT of one of the signal terminals SGT by the wire W, and the temperature detecting electrode pad TAP is one of the wire W and the signal terminal SGT. The temperature detecting terminal TAT is electrically connected. Further, the current detecting electrode pad SEP is electrically connected to the current detecting terminal SET of one of the signal terminals SGT by the wire W, and the Kelvin detecting electrode pad KP is connected to the Kelvin by the wire W. The terminal KT is electrically connected. At this time, the wiring W is composed of, for example, a conductive member mainly composed of gold, copper or aluminum.

另一方面，如圖12(a)所示般，在半導體晶片CHP2的陽極電極焊墊ADP上，經由導電性接著材來配置導電性構件的夾子CLP2。然後，此夾子CLP2是經由導電性接著材來與陽極端子AT連接。因此，半導體晶片CHP2的陽極電極焊墊ADP是經由夾子CLP2來與陽極端子AT電性連接。此夾子CLP2是例如由以銅為主成分的板狀構件所構成。亦即，由於本實施形態1是從半導體晶片CHP2的陽極電極焊墊ADP到陽極端子AT流動大電流，因此以能夠流動大電流的方式，使用可確保大的面積之夾子CLP2。 On the other hand, as shown in FIG. 12(a), the clip CLP2 of the conductive member is placed on the anode electrode pad ADP of the semiconductor wafer CHP2 via a conductive adhesive. Then, the clip CLP2 is connected to the anode terminal AT via a conductive adhesive. Therefore, the anode electrode pad ADP of the semiconductor wafer CHP2 is electrically connected to the anode terminal AT via the clip CLP2. This clip CLP2 is composed of, for example, a plate-like member mainly composed of copper. In other words, in the first embodiment, since a large current flows from the anode electrode pad ADP of the semiconductor wafer CHP2 to the anode terminal AT, the clip CLP2 capable of securing a large area is used so that a large current can flow.

在此，如圖12(a)所示般，平面視，晶片搭載部TAB2是被配置於密封體MR的邊S1(參照圖11(a))與晶片搭載部TAB1之間。基於此情形，半導體晶片CHP2是以能夠位於半導體晶片CHP1與射極端子ET(及陽極端子AT)之間的方式，搭載於晶片搭載部TAB2上，且半導體晶片CHP1是以能夠為於半導體晶片CHP2與訊號端子SGT之間的方式，搭載於晶片搭載部TAB1上。 Here, as shown in FIG. 12(a), the wafer mounting portion TAB2 is disposed between the side S1 (see FIG. 11(a)) of the sealing body MR and the wafer mounting portion TAB1. In this case, the semiconductor wafer CHP2 is mounted on the wafer mounting portion TAB2 so as to be positioned between the semiconductor wafer CHP1 and the emitter terminal ET (and the anode terminal AT), and the semiconductor wafer CHP1 can be used as the semiconductor wafer CHP2. The mode with the signal terminal SGT is mounted on the wafer mounting portion TAB1.

換言之，射極端子ET及陽極端子AT、半導體晶片CHP2、半導體晶片CHP1及訊號端子SGT是沿著y方向來配置。具體而言，平面視，半導體晶片CHP2是以比半導體晶片CHP1更接近射極端子ET及陽極端子AT 的方式，搭載於晶片搭載部TAB2上，且半導體晶片CHP1是以比半導體晶片CHP2更接近訊號端子SGT的方式，搭載於晶片搭載部TAB1上。 In other words, the emitter terminal ET and the anode terminal AT, the semiconductor wafer CHP2, the semiconductor wafer CHP1, and the signal terminal SGT are arranged along the y direction. Specifically, in plan view, the semiconductor wafer CHP2 is closer to the emitter terminal ET and the anode terminal AT than the semiconductor wafer CHP1. The semiconductor wafer CHP1 is mounted on the wafer mounting portion TAB1 so as to be closer to the signal terminal SGT than the semiconductor wafer CHP2.

而且，以平面視，閘極電極焊墊GP會比射極電極焊墊EP更近訊號端子SGT的方式，半導體晶片CHP1搭載於晶片搭載部TAB1上。再者，以平面視，包含閘極電極焊墊GP、溫度檢測用電極焊墊TCP、溫度檢測用電極焊墊TAP、電流檢測用電極焊墊SEP、開爾文檢測用電極焊墊KP之複數的電極焊墊會比射極電極焊墊EP更近訊號端子SGT的方式，半導體晶片CHP1搭載於晶片搭載部TAB1上。換言之，半導體晶片CHP1的複數的電極焊墊是平面視，亦可沿著半導體晶片CHP1的邊之中，最近訊號端子SGT的邊來配置。此時，如圖12(a)所示般，平面視，夾子CLP1是以不會和包含閘極電極焊墊GP之複數的電極焊墊及複數的接線W的任一重疊之方式配置。 Further, in a plan view, the gate electrode pad GP is closer to the signal terminal SGT than the emitter electrode pad EP, and the semiconductor wafer CHP1 is mounted on the wafer mounting portion TAB1. Further, in a plan view, a plurality of electrodes including a gate electrode pad GP, a temperature detecting electrode pad TCP, a temperature detecting electrode pad TAP, a current detecting electrode pad SEP, and a Kelvin detecting electrode pad KP The pad is closer to the signal terminal SGT than the emitter electrode pad EP, and the semiconductor wafer CHP1 is mounted on the wafer mounting portion TAB1. In other words, the plurality of electrode pads of the semiconductor wafer CHP1 are in plan view, and may be arranged along the side of the nearest signal terminal SGT among the sides of the semiconductor wafer CHP1. At this time, as shown in FIG. 12(a), the clip CLP1 is disposed so as not to overlap with any of the plurality of electrode pads including the gate electrode pad GP and the plurality of wires W.

而且，在圖12(a)中，夾子CLP1與夾子CLP2是被電性分離。因此，若考慮晶片搭載部TAB1與晶片搭載部TAB2被電性分離，且夾子CLP1與夾子CLP2被電性分離，則在本實施形態1的半導體裝置PAC1中，射極端子ET與陽極端子AT是被電性分離。 Further, in Fig. 12 (a), the clip CLP1 and the clip CLP2 are electrically separated. Therefore, when the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are electrically separated and the clip CLP1 and the clip CLP2 are electrically separated, in the semiconductor device PAC1 of the first embodiment, the emitter terminal ET and the anode terminal AT are It is electrically separated.

而且，平面視，夾子CLP1是配置成與半導體晶片CHP2重疊。具體而言，如圖12(a)所示般，平面視，半導體晶片CHP的陽極電極焊墊ADP是以其一部分 會與夾子CLP1重疊的方式形成於半導體晶片CHP2的表面上，且以夾子CLP2會覆蓋陽極電極焊墊ADP的方式，與陽極電極焊墊ADP電性連接。藉此，可知夾子CLP1是配置成與位於陽極電極焊墊ADP上的夾子CLP2的一部分重疊。 Moreover, in plan view, the clip CLP1 is disposed to overlap the semiconductor wafer CHP2. Specifically, as shown in FIG. 12( a ), the anode electrode pad ADP of the semiconductor wafer CHP is a part of the plan view. It is formed on the surface of the semiconductor wafer CHP2 so as to overlap the clip CLP1, and is electrically connected to the anode electrode pad ADP so that the clip CLP2 covers the anode electrode pad ADP. Thereby, it is understood that the clip CLP1 is disposed to overlap with a portion of the clip CLP2 located on the anode electrode pad ADP.

在如此內部構成的半導體裝置PAC1中，半導體晶片CHP1、半導體晶片CHP2、晶片搭載部TAB1的一部分、晶片搭載部TAB2的一部分、導線LD1A的一部分、導線LD1B的一部分、複數的訊號端子SGT的各一部分、夾子CLP1、夾子CLP2及接線W會以密封體MR來密封。 In the semiconductor device PAC1 having the internal configuration, the semiconductor wafer CHP1, the semiconductor wafer CHP2, a part of the wafer mounting portion TAB1, a part of the wafer mounting portion TAB2, a part of the wiring LD1A, a part of the wiring LD1B, and a part of the plurality of signal terminals SGT The clip CLP1, the clip CLP2, and the wire W are sealed by the sealing body MR.

接著，如圖12(b)及圖12(c)所示般，在晶片搭載部TAB1上，經由導電性接著材ADH1來搭載形成有IGBT的半導體晶片CHP1，在晶片搭載部TAB2上，經由導電性接著材ADH1來搭載形成有二極體的半導體晶片CHP2。 Then, as shown in FIG. 12(b) and FIG. 12(c), the semiconductor wafer CHP1 on which the IGBT is formed is mounted on the wafer mounting portion TAB1 via the conductive bonding material ADH1, and is electrically conducted on the wafer mounting portion TAB2. The semiconductor wafer CHP2 on which the diode is formed is mounted on the conductive material ADH1.

而且，如圖12(b)所示般，在半導體晶片CHP1的表面上，經由導電性黏著劑ADH2來配置夾子CLP1。此夾子CLP1是一邊通過半導體晶片CHP2的上方，一邊延伸，以導電性接著材ADH2來與射極端子ET連接。射極端子ET的一部分是從密封體MR露出。並且，半導體晶片CHP1是以接線W來與被配置於和射極端子ET相反側的訊號端子SGT連接，訊號端子SGT的一部分也從密封體MR露出。 Further, as shown in FIG. 12(b), the clip CLP1 is placed on the surface of the semiconductor wafer CHP1 via the conductive adhesive ADH2. The clip CLP1 extends while passing over the semiconductor wafer CHP2, and is connected to the emitter terminal ET by the conductive adhesive ADH2. A part of the emitter terminal ET is exposed from the sealing body MR. Further, the semiconductor wafer CHP1 is connected to the signal terminal SGT disposed on the side opposite to the emitter terminal ET by the wire W, and a part of the signal terminal SGT is also exposed from the sealing body MR.

圖13是將圖12(b)的領域AR1擴大顯示的圖。如圖13所示般，可知夾子CLP1會延伸於經由導電性接著材ADH2來搭載於半導體晶片CHP2上的夾子CLP2的上方。亦即，如圖13所示般，可知夾子CLP1是被配置成一面與夾子CLP2分離，一面跨過夾子CLP2的一部分。基於此情形，夾子CLP1與夾子CLP2是被物理性地分離，此結果，可知夾子CLP1與夾子CLP2是被配置成電性分離。 Fig. 13 is an enlarged view of the field AR1 of Fig. 12(b). As shown in FIG. 13, it is understood that the clip CLP1 extends over the clip CLP2 mounted on the semiconductor wafer CHP2 via the conductive adhesive ADH2. That is, as shown in FIG. 13, it is understood that the clip CLP1 is disposed so as to be separated from the clip CLP2 while crossing a portion of the clip CLP2. Based on this, the clip CLP1 and the clip CLP2 are physically separated, and as a result, it is understood that the clip CLP1 and the clip CLP2 are configured to be electrically separated.

又，如圖12(c)所示般，在半導體晶片CHP2的表面上，經由導電性黏著劑ADH2來配置有夾子CLP2。此夾子CLP2是以導電性接著材ADH2來與陽極端子AT連接，陽極端子AT的一部分是從密封體MR露出。 Further, as shown in FIG. 12(c), a clip CLP2 is disposed on the surface of the semiconductor wafer CHP2 via the conductive adhesive ADH2. The clip CLP2 is connected to the anode terminal AT by a conductive adhesive material ADH2, and a part of the anode terminal AT is exposed from the sealing body MR.

在此，如圖12(b)及圖12(c)所示般，晶片搭載部TAB1的下面是從密封體MR的下面露出，此露出的晶片搭載部TAB1的下面會成為集極端子。而且，晶片搭載部TAB1的下面是在將半導體裝置PAC1安裝於安裝基板時，成為可與形成於安裝基板上的配線進行錫焊的面。 Here, as shown in FIGS. 12(b) and 12(c), the lower surface of the wafer mounting portion TAB1 is exposed from the lower surface of the sealing body MR, and the lower surface of the exposed wafer mounting portion TAB1 serves as a collector terminal. Further, the lower surface of the wafer mounting portion TAB1 is a surface that can be soldered to the wiring formed on the mounting substrate when the semiconductor device PAC1 is mounted on the mounting substrate.

同樣，晶片搭載部TAB2的下面是從密封體MR的下面露出，此露出的晶片搭載部TAB2的下面會成為陰極端子。而且，晶片搭載部TAB2的下面是在將半導體裝置PAC1安裝於安裝基板時，成為可與形成於安裝基板上的配線進行錫焊的面。 Similarly, the lower surface of the wafer mounting portion TAB2 is exposed from the lower surface of the sealing body MR, and the lower surface of the exposed wafer mounting portion TAB2 serves as a cathode terminal. Further, the lower surface of the wafer mounting portion TAB2 is a surface that can be soldered to the wiring formed on the mounting substrate when the semiconductor device PAC1 is mounted on the mounting substrate.

此時，如圖12(b)及圖12(c)所示般，由於晶片搭載部TAB1與晶片搭載部TAB2是被電性分離，因此晶片搭載部TAB1的下面之集極端子與晶片搭載部TAB2的下面之陰極端子是被電性分離。 At this time, as shown in FIG. 12(b) and FIG. 12(c), since the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are electrically separated, the lower electrode terminal and the wafer mounting portion of the wafer mounting portion TAB1 are provided. The cathode terminals below the TAB2 are electrically separated.

另外，如圖12(b)及圖12(c)所示般，晶片搭載部TAB1的厚度或晶片搭載部TAB2的厚度是比射極端子ET的厚度或陽極端子AT的厚度或訊號端子SGT的厚度更厚。 Further, as shown in FIGS. 12(b) and 12(c), the thickness of the wafer mounting portion TAB1 or the thickness of the wafer mounting portion TAB2 is larger than the thickness of the emitter terminal ET or the thickness of the anode terminal AT or the signal terminal SGT. Thicker thickness.

在本實施形態1的半導體裝置PAC1中，導電性接著材ADH1及導電性黏著劑ADH2是例如可使用以環氧樹脂等的材料作為黏合劑，使含有銀填充物(Ag填充物)的銀膏。由於此銀膏是成分中不含鉛的無鉛材料，因此具有環保的優點。並且，銀膏是溫度循環性或功率循環性佳，可取得能夠提升半導體裝置PAC1的可靠度的優點。而且，使用銀膏時，例如對於使用在焊錫的回流處理的真空回流裝置而言，可用成本低的烘烤爐來進行銀膏的熱處理，因此亦可取得半導體裝置PAC1的組裝設備便宜的優點。 In the semiconductor device PAC1 of the first embodiment, the conductive adhesive ADH1 and the conductive adhesive ADH2 are, for example, a silver paste containing a silver filler (Ag filler) using a material such as an epoxy resin as a binder. . Since this silver paste is a lead-free material that does not contain lead, it is environmentally friendly. Further, the silver paste is excellent in temperature cycle property or power cycleability, and an advantage that the reliability of the semiconductor device PAC1 can be improved can be obtained. Further, when a silver paste is used, for example, in a vacuum reflow apparatus using a reflow treatment of solder, a heat treatment of a silver paste can be performed in a low-cost baking oven, and therefore, an advantage of an assembly apparatus of the semiconductor device PAC1 can be obtained.

但，導電性接著材ADH1及導電性黏著劑ADH2是不限於銀膏，例如亦可使用焊錫。使用焊錫作為導電性接著材ADH1及導電性黏著劑ADH2時，由於焊錫的電氣傳導率高，因此可取得能夠降低半導體裝置PAC1的ON電阻的優點。亦即，藉由使用焊錫，例如可謀求被使用在需要ON電阻的降低的反相器之半導體裝置PAC1 的性能提升。 However, the conductive adhesive material ADH1 and the conductive adhesive ADH2 are not limited to silver paste, and for example, solder may be used. When solder is used as the conductive adhesive ADH1 and the conductive adhesive ADH2, since the electrical conductivity of the solder is high, the advantage of reducing the ON resistance of the semiconductor device PAC1 can be obtained. In other words, by using solder, for example, a semiconductor device PAC1 that is used in a inverter that requires a reduction in ON resistance can be used. Performance improvements.

在此，本實施形態1的半導體裝置PAC1作為製品完成後，被安裝於電路基板(安裝基板)。此情況，半導體裝置PAC1與安裝基板的連接是使用焊錫。焊錫的連接時，為了使焊錫溶融而連接，需要加熱處理(回流)。 Here, the semiconductor device PAC1 of the first embodiment is mounted on a circuit board (mounting substrate) as a product. In this case, the connection between the semiconductor device PAC1 and the mounting substrate is solder. When the solder is connected, in order to melt the solder and connect it, heat treatment (reflow) is required.

因此，當使用在半導體裝置PAC1與安裝基板的連接之焊錫和使用在上述半導體裝置PAC1的內部的焊錫為同材料時，藉由半導體裝置PAC1與安裝基板的連接時所被施加的熱處理(回流)，使用在半導體裝置PAC1的內部之焊錫也會溶融。此情況，因為焊錫的溶融所造成的體積膨脹，在密封半導體裝置PAC1的樹脂中產生龜裂，或發生溶融的焊錫往外部漏出的不良情況。 Therefore, when the solder used for the connection between the semiconductor device PAC1 and the mounting substrate and the solder used in the inside of the semiconductor device PAC1 are made of the same material, the heat treatment (reflow) applied when the semiconductor device PAC1 is connected to the mounting substrate is used. The solder used inside the semiconductor device PAC1 is also melted. In this case, due to the volume expansion caused by the melting of the solder, cracks may occur in the resin sealing the semiconductor device PAC1, or the molten solder may leak to the outside.

基於此情形，在半導體裝置PAC1的內部是使用高融點焊錫。此情況，藉由施加於半導體裝置PAC1與安裝基板的連接時的熱處理(回流)，被使用在半導體裝置PAC1的內部的高融點焊錫是不會有溶融的情形。此結果，可防止因高融點焊錫的溶融所造成的體積膨脹，在密封半導體裝置PAC1的樹脂產生龜裂，或溶融的焊錫往外部漏出之不良情況。 Based on this, high melting point solder is used inside the semiconductor device PAC1. In this case, the high-melting-point solder used in the inside of the semiconductor device PAC1 is not melted by the heat treatment (reflow) applied to the connection of the semiconductor device PAC1 and the mounting substrate. As a result, it is possible to prevent the volume expansion due to the melting of the high melting point solder, and the resin of the sealing semiconductor device PAC1 is cracked or the molten solder leaks to the outside.

被使用在半導體裝置PAC1與安裝基板的連接之焊錫是例如使用以Sn(錫)-銀(Ag)-銅(Cu)為代表之融點為220℃程度的焊錫，回流時，半導體裝置PAC1是被加熱至260℃程度。基於此情形，例如，在本 說明書所謂的高融點焊錫是意圖即使加熱至260℃程度也不溶融的焊錫。若舉代表性者，則例如融點為300℃以上，回流溫度為350℃程度，含Pb(鉛)90重量%以上的焊錫。 The solder used for the connection between the semiconductor device PAC1 and the mounting substrate is, for example, solder having a melting point of about 220 ° C represented by Sn (tin)-silver (Ag)-copper (Cu). When reflowing, the semiconductor device PAC1 is It is heated to the extent of 260 °C. Based on this situation, for example, in this The high melting point solder referred to in the specification is a solder which is intended to be molten even if heated to 260 ° C. In the case of a representative one, for example, the melting point is 300 ° C or higher, the reflow temperature is about 350 ° C, and the solder containing Pb (lead) is 90% by weight or more.

基本上，本實施形態1的半導體裝置PAC1是假想導電性接著材ADH1與導電性接著材ADH2為同材料成分。但，並非限於此，例如，亦可將構成導電性接著材ADH1的材料、及構成導電性接著材ADH2的材料，由不同的材料成分所構成。 Basically, in the semiconductor device PAC1 of the first embodiment, the virtual conductive adhesive material ADH1 and the conductive adhesive material ADH2 are made of the same material component. However, the material constituting the conductive adhesive material ADH1 and the material constituting the conductive adhesive material ADH2 may be composed of different material components, for example.

<在側面具有階差形狀的構造> <Configuration having a step shape on the side>

接著，說明有關本實施形態1的半導體裝置PAC1所具有的「在側面具有階差形狀的構造」。 Next, the "structure having a step shape on the side surface" of the semiconductor device PAC1 according to the first embodiment will be described.

圖14是說明「在側面具有階差形狀的構造」的圖，在圖14的中央部，模式性地顯示「在側面具有階差形狀的構造」的晶片搭載部TAB1會以密封體MR所密封的狀態。在圖14中，以能夠覆蓋晶片搭載部TAB1的方式形成密封體MR，晶片搭載部TAB1的下面會從此密封體MR的背面露出。 FIG. 14 is a view for explaining "a structure having a stepped shape on the side surface", and in the center portion of FIG. 14, the wafer mounting portion TAB1 that "shows a structure having a stepped shape on the side surface" is sealed by the sealing body MR. status. In FIG. 14, the sealing body MR is formed so that the wafer mounting portion TAB1 can be covered, and the lower surface of the wafer mounting portion TAB1 is exposed from the back surface of the sealing body MR.

此時，如圖14所示般，在晶片搭載部TAB1形成有「突出部PJU」。亦即，在晶片搭載部TAB1的端部(或側面)是形成有突出部PJU，藉此在晶片搭載部TAB1的厚度方向設有階差。藉由此突出部PJU所產生的階差構造會作為制止器的機能，因此可取得能夠防止晶片 搭載部TAB1從密封體MR脫落的優點。 At this time, as shown in FIG. 14, the "protrusion portion PJU" is formed in the wafer mounting portion TAB1. In other words, the end portion (or the side surface) of the wafer mounting portion TAB1 is formed with the protruding portion PJU, whereby a step is provided in the thickness direction of the wafer mounting portion TAB1. The step structure generated by the protrusion PJU serves as a function of the stopper, so that the wafer can be prevented from being obtained The advantage that the mounting portion TAB1 is detached from the sealing body MR.

藉由此階差構造，圖14的上部所示的晶片搭載部TAB1的上面USF的面積會比圖14的下部所示從密封體MR的背面露出的晶片搭載部TAB1的下面BSF的面積更大。藉由階差構造，圖14的下部所示從密封體MR的背面露出的晶片搭載部TAB1的下面BSF的面積會比圖14的上部所示的晶片搭載部TAB1的上面USF的面積更小。 With this step structure, the area of the upper surface USF of the wafer mounting portion TAB1 shown in the upper portion of FIG. 14 is larger than the area of the lower surface BSF of the wafer mounting portion TAB1 exposed from the back surface of the sealing body MR shown in the lower portion of FIG. . By the step structure, the area of the lower surface BSF of the wafer mounting portion TAB1 exposed from the back surface of the sealing body MR shown in the lower portion of FIG. 14 is smaller than the area of the upper surface USF of the wafer mounting portion TAB1 shown in the upper portion of FIG.

另外，在圖14中是著眼於晶片搭載部TAB1來說明有關階差構造，但同樣在晶片搭載部TAB2的端部(或側面)也形成有藉由突出部PJU所產生的階差構造。因此，在晶片搭載部TAB2中也藉由階差構造，晶片搭載部TAB2的上面積會比從密封體MR的背面露出的晶片搭載部TAB2的下面積更大。 In addition, although the step structure is described focusing on the wafer mounting portion TAB1 in FIG. 14, the step structure generated by the protruding portion PJU is also formed in the end portion (or the side surface) of the wafer mounting portion TAB2. Therefore, in the wafer mounting portion TAB2, the upper surface area of the wafer mounting portion TAB2 is larger than the lower surface area of the wafer mounting portion TAB2 exposed from the back surface of the sealing body MR.

在此，本實施形態1的半導體裝置PAC1是在晶片搭載部TAB1形成有缺口部CS1，但例如當此缺口部CS1被形成到達晶片搭載部TAB1的上面USF及下面BSF時，如圖14所示般，藉由突出部PJU所產生的階差構造，在晶片搭載部TAB1的上面USF的缺口部CS1的面積是形成比在晶片搭載部TAB1的下面BSF的缺口部CS1的面積更大。詳細，平面視，在圖14的上部的晶片搭載部TAB1的上面USF側的缺口部CS1與晶片搭載部TAB1的上面USF的邊之中形成有缺口部CS1的邊的假想線之間所形成的領域的面積會比在圖14的下部的晶片搭 載部TAB1的下面BSF側的缺口部CS1與晶片搭載部TAB1的下面BSF的邊之中形成有缺口部CS1的邊的假想線之間所形成的領域的面積更大。 Here, in the semiconductor device PAC1 of the first embodiment, the notch portion CS1 is formed in the wafer mounting portion TAB1. For example, when the notch portion CS1 is formed to reach the upper surface USF and the lower surface BSF of the wafer mounting portion TAB1, as shown in FIG. In general, the area of the notch portion CS1 of the upper surface USF of the wafer mounting portion TAB1 is larger than the area of the notch portion CS1 of the lower surface BSF of the wafer mounting portion TAB1 by the step structure generated by the protruding portion PJU. In detail, a plan view is formed between the notch portion CS1 on the upper surface USF side of the wafer mounting portion TAB1 in the upper portion of FIG. 14 and the virtual line on the side of the upper surface USF of the wafer mounting portion TAB1 in which the notch portion CS1 is formed. The area of the field will be larger than the wafer in the lower part of Figure 14. The area of the field formed between the notch portion CS1 on the lower surface BSF side of the carrier portion TAB1 and the imaginary line in which the side of the lower surface BSF of the wafer mounting portion TAB1 is formed with the notch portion CS1 is larger.

同樣，本實施形態1的半導體裝置PAC1是在晶片搭載部TAB2形成有缺口部CS2，但例如當此缺口部CS2被形成到達晶片搭載部TAB2的上面及下面時，藉由突出部PJU所產生的階差構造，在晶片搭載部TAB2的上面的缺口部CS2的面積是形成比在晶片搭載部TAB2的下面的缺口部CS2的面積更大。 Similarly, in the semiconductor device PAC1 of the first embodiment, the notch portion CS2 is formed in the wafer mounting portion TAB2. However, when the notch portion CS2 is formed on the upper surface and the lower surface of the wafer mounting portion TAB2, for example, the protruding portion PJU is generated. In the step structure, the area of the notch portion CS2 on the upper surface of the wafer mounting portion TAB2 is larger than the area of the notch portion CS2 on the lower surface of the wafer mounting portion TAB2.

另外，例如圖15所示般，缺口部CS1亦有形成不到達晶片搭載部TAB1的上面，只到達下面BSF的情形。此情況，如圖15所示般，在晶片搭載部TAB1的上面USF是未形成缺口部CS1，另一方面，在晶片搭載部TAB1的下面BSF形成有缺口部CS1。 Further, for example, as shown in FIG. 15, the notch portion CS1 may be formed so as not to reach the upper surface of the wafer mounting portion TAB1 and only reach the lower BSF. In this case, as shown in FIG. 15, the upper portion USF of the wafer mounting portion TAB1 is not formed with the notch portion CS1, and the lower portion BSF of the wafer mounting portion TAB1 is formed with the notch portion CS1.

同樣，晶片搭載部TAB2的缺口部CS2亦有形成不到達晶片搭載部TAB2的上面，只到達下面的情形。此情況亦在晶片搭載部TAB2的上面是未形成缺口部CS2，另一方面，在晶片搭載部TAB2的下面BSF形成有缺口部CS2。 Similarly, the notch portion CS2 of the wafer mounting portion TAB2 is formed so as not to reach the upper surface of the wafer mounting portion TAB2, and only reaches the lower surface. In this case, the notch portion CS2 is not formed on the upper surface of the wafer mounting portion TAB2, and the notch portion CS2 is formed on the lower surface BSF of the wafer mounting portion TAB2.

如以上般，安裝構成本實施形態1的半導體裝置PAC1，以下，一邊參照圖面，一邊說明本實施形態1的半導體裝置PAC1的製造方法。 As described above, the semiconductor device PAC1 of the first embodiment is mounted. Hereinafter, a method of manufacturing the semiconductor device PAC1 according to the first embodiment will be described with reference to the drawings.

<實施形態1的半導體裝置的製造方法> <Method of Manufacturing Semiconductor Device According to First Embodiment> 1.晶片搭載部準備工程 1. Wafer mounting department preparation project

首先，如圖16(a)所示般，準備具有主面的下治具BJG，該主面形成有複數的凸部CVX1及複數的凸部CVX2。此時，在下治具BJG的主面上，於複數的凸部CVX1及複數的凸部CVX2的周圍形成有凸部CVX3。 First, as shown in Fig. 16 (a), a lower jig BJG having a main surface on which a plurality of convex portions CVX1 and a plurality of convex portions CVX2 are formed is prepared. At this time, on the main surface of the lower fixture BJG, a convex portion CVX3 is formed around the plurality of convex portions CVX1 and the plurality of convex portions CVX2.

準備如此構成的下治具BJG之後，在下治具BJG的主面上配置晶片搭載部TAB1及晶片搭載部TAB2。具體而言，如圖16(a)所示般，以晶片搭載部TAB1的側面SSF2與晶片搭載部TAB2的側面SSF3能夠對向的方式，在下治具BJG的主面上配置晶片搭載部TAB1及晶片搭載部TAB2。此時，如圖16(a)所示般，晶片搭載部TAB1的上面的平面形狀是長方形形狀，晶片搭載部TAB2的上面的平面形狀也是形成長方形形狀。而且，晶片搭載部TAB1的側面SSF2是包含構成晶片搭載部TAB1的上面的長邊之側面，晶片搭載部TAB2的側面SSF3是成為包含構成晶片搭載部TAB2的上面的長邊之側面。 After the lower fixture BJG configured as described above is prepared, the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are disposed on the main surface of the lower fixture BJG. Specifically, as shown in Fig. 16 (a), the wafer mounting portion TAB1 and the main surface of the lower fixture BJG are disposed so that the side surface SSF2 of the wafer mounting portion TAB1 and the side surface SSF3 of the wafer mounting portion TAB2 can face each other. Wafer mounting portion TAB2. At this time, as shown in FIG. 16( a ), the planar shape of the upper surface of the wafer mounting portion TAB1 is a rectangular shape, and the planar shape of the upper surface of the wafer mounting portion TAB 2 is also formed into a rectangular shape. In addition, the side surface SSF2 of the wafer mounting portion TAB1 is a side surface including the long side of the upper surface of the wafer mounting portion TAB1, and the side surface SSF3 of the wafer mounting portion TAB2 is a side surface including the long side of the upper surface of the wafer mounting portion TAB2.

在此，如圖16(a)所示般，藉由將晶片搭載部TAB1的側面SSF2以外的複數的側面分別推壓於複數的凸部CVX1，晶片搭載部TAB1會被定位於下治具BJG的主面上。同樣，藉由將晶片搭載部TAB2的側面SSF3以外的複數的側面分別推壓於複數的凸部CVX2，晶片搭載部TAB2會被定位於下治具BJG的主面上。 Here, as shown in FIG. 16(a), the plurality of side faces other than the side surface SSF2 of the wafer mounting portion TAB1 are pressed against the plurality of convex portions CVX1, and the wafer mounting portion TAB1 is positioned at the lower jig BJG. On the main face. In the same manner, the plurality of side faces other than the side surface SSF3 of the wafer mounting portion TAB2 are pressed against the plurality of convex portions CVX2, and the wafer mounting portion TAB2 is positioned on the main surface of the lower jig BJG.

而且，詳細，如圖16(a)所示般，晶片搭載 部TAB1及晶片搭載部TAB2的各自平面形狀是四角形形狀，晶片搭載部TAB1是與側面SSF2交叉，且具有彼此對向的側面SSF5及側面SSF6，又，晶片搭載部TAB2是與側面SSF3交叉，且具有彼此對向的側面SSF7及側面SSF8。此時，例如，複數的凸部CVX1是被配置成只接觸於側面SSF5及側面SSF6，複數的凸部CVX2是被配置成只接觸於側面SSF7及側面SSF8。 Moreover, in detail, as shown in FIG. 16(a), the wafer is mounted. The planar shape of each of the portion TAB1 and the wafer mounting portion TAB2 is a quadrangular shape, and the wafer mounting portion TAB1 intersects the side surface SSF2 and has side surfaces SSF5 and SSF6 that face each other, and the wafer mounting portion TAB2 intersects the side surface SSF3. There are side SSF7 and side SSF8 that face each other. At this time, for example, the plurality of convex portions CVX1 are disposed so as to be in contact only with the side surface SSF5 and the side surface SSF6, and the plurality of convex portions CVX2 are disposed to be in contact only with the side surface SSF7 and the side surface SSF8.

而且，在晶片搭載部TAB1的側面SSF5及側面SSF6是形成有分別對應於複數的凸部CVX1之缺口部CS1。同樣，在晶片搭載部TAB2的側面SSF7及側面SSF8是形成有分別對應於複數的凸部CVX2之缺口部CS2。 Further, the side surface SSF5 and the side surface SSF6 of the wafer mounting portion TAB1 are formed with cutout portions CS1 corresponding to the plurality of convex portions CVX1, respectively. Similarly, the side surface SSF7 and the side surface SSF8 of the wafer mounting portion TAB2 are formed with cutout portions CS2 corresponding to the plurality of convex portions CVX2, respectively.

具體而言，如圖16(a)所示般，分別在晶片搭載部TAB1的側面SSF5及側面SSF6至少形成有對應於複數的凸部CVX1之中1個的凸部CVX1之1個的缺口部CS1，分別在晶片搭載部TAB2的側面SSF7及側面SSF8至少形成有對應於複數的凸部CVX2之中1個的凸部CVX2之1個的缺口部CS2。 Specifically, as shown in Fig. 16 (a), at least one of the convex portions CVX1 corresponding to one of the plurality of convex portions CVX1 is formed in the side surface SSF5 and the side surface SSF6 of the wafer mounting portion TAB1. In the CS1, at least one notch portion CS2 corresponding to one of the plurality of convex portions CVX2 of the plurality of convex portions CVX2 is formed on the side surface SSF7 and the side surface SSF8 of the wafer mounting portion TAB2.

藉此，在本實施形態1中是藉由將形成於晶片搭載部TAB1的缺口部CS1推壓於凸部CVX1，晶片搭載部TAB1會被定位於下治具BJG的主面上，且藉由將形成於晶片搭載部TAB2的缺口部CS2推壓於凸部CVX2，晶片搭載部TAB2會被定位於下治具BJG的主面上。 As a result, in the first embodiment, the notch portion CS1 formed in the wafer mounting portion TAB1 is pressed against the convex portion CVX1, and the wafer mounting portion TAB1 is positioned on the main surface of the lower jig BJG. The notch portion CS2 formed in the wafer mounting portion TAB2 is pressed against the convex portion CVX2, and the wafer mounting portion TAB2 is positioned on the main surface of the lower jig BJG.

另外，晶片搭載部TAB1及晶片搭載部TAB2 是例如可由同一大小的矩形形狀所構成。此時，晶片搭載部TAB1的大小與晶片搭載部TAB2的大小是不須同一大小，亦可為不同的大小。但，由於SR馬達用的半導體裝置是IGBT的熱損失與二極體的熱損失為同等，因此可思考期望使來自形成有IGBT的半導體晶片的放熱效率與來自形成有二極體的半導體晶片的放熱效率形成同等。因此，使搭載形成有IGBT的半導體晶片的晶片搭載部TAB1的大小與搭載形成有二極體的半導體晶片的晶片搭載部TAB2的大小形成相同，而將放熱效率設為同等，由使半導體裝置全體的放熱效率提升的觀點來看，可謂最理想。 Moreover, the wafer mounting portion TAB1 and the wafer mounting portion TAB2 For example, it may be composed of a rectangular shape of the same size. At this time, the size of the wafer mounting portion TAB1 and the size of the wafer mounting portion TAB2 do not have to be the same size, and may be different sizes. However, since the semiconductor device for the SR motor has the same heat loss as the IGBT and the heat loss of the diode, it is considered that it is desirable to make the heat release efficiency of the semiconductor wafer from which the IGBT is formed and the semiconductor wafer from which the diode is formed. The exothermic efficiency is equal. Therefore, the size of the wafer mounting portion TAB1 on which the semiconductor wafer on which the IGBT is formed is formed is the same as the size of the wafer mounting portion TAB2 on which the semiconductor wafer on which the diode is formed, and the heat radiation efficiency is made equal, and the semiconductor device is made entirely. From the point of view of the improvement of the heat release efficiency, it is the most ideal.

其次，圖16(b)是在圖16(a)的A-A線切斷的剖面圖。如圖16(b)所示般，在下治具BJG是形成有凸部CVX3，且以能夠接觸於此凸部CVX3的方式形成有凸部CVX1。然後，形成於晶片搭載部TAB1的缺口部CS1會被推壓於此凸部CVX1，藉此晶片搭載部TAB1會被定位配置於下治具BJG上。 Next, Fig. 16(b) is a cross-sectional view taken along line A-A of Fig. 16(a). As shown in FIG. 16(b), the lower fixture BJG is formed with a convex portion CVX3, and a convex portion CVX1 is formed so as to be able to contact the convex portion CVX3. Then, the notch portion CS1 formed in the wafer mounting portion TAB1 is pressed against the convex portion CVX1, whereby the wafer mounting portion TAB1 is positioned and placed on the lower jig BJG.

在此，如圖16(b)所示般，以下治具BJG的主面作為基準面時，凸部CVX3的高度是比凸部CVX1的高度更高，且比晶片搭載部TAB1的上面的高度更低。在圖16(b)中，雖未被圖示，但同樣，凸部CVX3的高度是比凸部CVX2的高度更高，且比晶片搭載部TAB2的上面的高度更低。此結果，可容易實施其次說明的導電性接著材形成工程。以下，說明有關導電性接著材形成工 程。 Here, as shown in FIG. 16(b), when the main surface of the lower fixture BJG is used as the reference surface, the height of the convex portion CVX3 is higher than the height of the convex portion CVX1 and higher than the height of the upper surface of the wafer mounting portion TAB1. Lower. In FIG. 16(b), although not shown, the height of the convex portion CVX3 is higher than the height of the convex portion CVX2 and lower than the height of the upper surface of the wafer mounting portion TAB2. As a result, the conductive bonding material forming process described second can be easily performed. The following describes the conductive laminate forming work. Cheng.

2.導電性接著材形成工程 2. Conductive material formation engineering

如圖17(a)及圖17(b)所示般，在晶片搭載部TAB1上供給導電性接著材ADH1，且在晶片搭載部TAB2上也供給導電性接著材ADH1。導電性接著材ADH1是例如可使用銀膏或高融點焊錫(焊錫膏)。以下的說明是舉導電性接著材ADH1的一例之導電性膏PST1來進行說明。 As shown in FIGS. 17(a) and 17(b), the conductive bonding material ADH1 is supplied to the wafer mounting portion TAB1, and the conductive bonding material ADH1 is also supplied to the wafer mounting portion TAB2. The conductive adhesive material ADH1 is, for example, a silver paste or a high melting point solder (solder paste). The following description is a conductive paste PST1 which is an example of the conductive adhesive ADH1.

圖18是模式性地表示在晶片搭載部TAB1上及晶片搭載部TAB2上形成導電性膏PST1的工程的圖。在圖18中，首先，以能夠比晶片搭載部TAB1的上面及晶片搭載部TAB2的上面更位於上方的方式，將印刷遮罩MSK1配置於下治具BJG的主面上。 FIG. 18 is a view schematically showing a process of forming the conductive paste PST1 on the wafer mounting portion TAB1 and the wafer mounting portion TAB2. In FIG. 18, the printing mask MSK1 is placed on the main surface of the lower jig BJG so that it can be positioned above the upper surface of the wafer mounting portion TAB1 and the upper surface of the wafer mounting portion TAB2.

此時，如上述的圖16(b)所示般，以下治具BJG的主面作為基準面時，凸部CVX3的高度是比凸部CVX1的高度更高，且比晶片搭載部TAB1的上面的高度更低，同時凸部CVX3的高度是比凸部CVX2的高度更高，且比晶片搭載部TAB2的上面的高度更低。 At this time, as shown in FIG. 16(b) above, when the main surface of the lower fixture BJG is used as the reference surface, the height of the convex portion CVX3 is higher than the height of the convex portion CVX1 and higher than the upper surface of the wafer mounting portion TAB1. The height is lower, and the height of the convex portion CVX3 is higher than the height of the convex portion CVX2 and lower than the height of the upper surface of the wafer mounting portion TAB2.

此結果，可以使印刷遮罩MSK1的背面接觸於晶片搭載部TAB1的上面及晶片搭載部TAB2的上面，且與凸部CVX3保持間隙的方式，將印刷遮罩MSK1配置於下治具BJG的主面上。 As a result, the back surface of the print mask MSK1 can be placed on the upper surface of the wafer mounting portion TAB1 and the upper surface of the wafer mounting portion TAB2, and the printed mask MSK1 can be placed on the lower fixture BJG so as to maintain a gap with the convex portion CVX3. On the surface.

之後，如圖18所示般，在印刷遮罩MSK1的 表面，藉由刮刀SQ來擠壓導電性膏PST1，從形成於印刷遮罩MSK1內的開口部來供給導電性膏PST1至晶片搭載部TAB1的上面及晶片搭載部TAB2的上面。此時，凸部CVX3的高度是在擠壓工程中，刮刀SQ會通過凸部CVX3上，印刷遮罩MSK1彎曲時，印刷遮罩MSK1的背面會與凸部CVX3接觸的高度。藉此，若根據本實施形態1，則在擠壓工程中，能以形成於下治具BJG的凸部CVX3來保持遮罩MSK1，因此可保持印刷遮罩MSK1的水平度，藉此，可一邊將導電性膏PST1供給至從印刷遮罩MSK1的開口部露出的晶片搭載部TAB1的上面及晶片搭載部TAB2的上面，一邊藉由刮刀SQ來除去不要的導電性膏PST1。 After that, as shown in Figure 18, in the print mask MSK1 On the surface, the conductive paste PST1 is pressed by the doctor blade SQ, and the conductive paste PST1 is supplied from the opening formed in the printing mask MSK1 to the upper surface of the wafer mounting portion TAB1 and the upper surface of the wafer mounting portion TAB2. At this time, the height of the convex portion CVX3 is the height at which the scraper SQ passes through the convex portion CVX3 and the back surface of the printed mask MSK1 comes into contact with the convex portion CVX3 when the printing mask MSK1 is bent. According to the first embodiment, the mask MSK1 can be held by the convex portion CVX3 formed in the lower jig BJG in the extrusion process, so that the level of the printing mask MSK1 can be maintained. The conductive paste PST1 is supplied to the upper surface of the wafer mounting portion TAB1 exposed from the opening of the printing mask MSK1 and the upper surface of the wafer mounting portion TAB2, and the unnecessary conductive paste PST1 is removed by the doctor blade SQ.

如此，若根據本實施形態1，則可藉由在下治具BJG形成凸部CVX3，一邊以下治具BJG來定位配置晶片搭載部TAB1及晶片搭載部TAB2，一邊在晶片搭載部TAB1的上面及晶片搭載部TAB2的上面供給導電性膏PST1。亦即，形成於下治具BJG的凸部CVX3是具有容易實現使用印刷遮罩MSK1及刮刀SQ來將導電性膏PST1供給至晶片搭載部TAB1的上面及晶片搭載部TAB2的上面的擠壓工程之機能。 According to the first embodiment, the convex portion CVX3 is formed in the lower fixture BJG, and the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are positioned and positioned on the wafer mounting portion TAB1 and the wafer. The conductive paste PST1 is supplied to the upper surface of the mounting portion TAB2. In other words, the convex portion CVX3 formed in the lower jig BJG has an extrusion process in which the conductive paste PST1 is supplied to the upper surface of the wafer mounting portion TAB1 and the upper surface of the wafer mounting portion TAB2 by using the printed mask MSK1 and the doctor blade SQ. The function.

3.晶片搭載工程 3. Wafer loading engineering

其次，如圖19所示般，在晶片搭載部TAB1上搭載形成有IGBT的半導體晶片CHP1，在晶片搭載部TAB2 上搭載形成有二極體的半導體晶片CHP2。 Next, as shown in FIG. 19, the semiconductor wafer CHP1 on which the IGBT is formed is mounted on the wafer mounting portion TAB1, and the wafer mounting portion TAB2 is mounted on the wafer mounting portion TAB2. A semiconductor wafer CHP2 on which a diode is formed is mounted thereon.

具體而言，在晶片搭載部TAB1上搭載半導體晶片CHP1(該半導體晶片CHP1是具有：具備IGBT，且形成有射極電極焊墊EP的第1表面、及形成有集極電極，與第1表面為相反側的面的第1背面)，而電性連接晶片搭載部TAB1與半導體晶片CHP1的第1背面。同樣，在晶片搭載部TAB2上搭載半導體晶片CHP2(該半導體晶片CHP2是具有：具備二極體，且形成有陽極電極焊墊ADP的第2表面、及形成有陰極電極，與第2表面為相反側的面的第2背面)，而電性連接晶片搭載部TAB2與半導體晶片CHP2的第2背面。 Specifically, the semiconductor wafer CHP1 is mounted on the wafer mounting portion TAB1 (the semiconductor wafer CHP1 has a first surface on which the IGBT is formed, the emitter electrode pad EP is formed, and a collector electrode is formed, and the first surface is formed The first back surface of the wafer mounting portion TAB1 and the semiconductor wafer CHP1 are electrically connected to the first back surface of the surface on the opposite side. Similarly, the semiconductor wafer CHP2 is mounted on the wafer mounting portion TAB2 (the semiconductor wafer CHP2 has a second surface on which the anode electrode pad ADP is formed, and a cathode electrode is formed, which is opposite to the second surface. The second back surface of the side surface is electrically connected to the second back surface of the wafer mounting portion TAB2 and the semiconductor wafer CHP2.

藉此，在形成有二極體的半導體晶片CHP2中，是以被形成於半導體晶片CHP2的背面之陰極電極焊墊會經由導電性膏PST1來與晶片搭載部TAB2接觸的方式配置。此結果，被形成於半導體晶片CHP2的表面之陽極電極焊墊ADP會形成朝上(參照圖12)。 Thereby, in the semiconductor wafer CHP2 in which the diode is formed, the cathode electrode pad formed on the back surface of the semiconductor wafer CHP2 is placed in contact with the wafer mounting portion TAB2 via the conductive paste PST1. As a result, the anode electrode pad ADP formed on the surface of the semiconductor wafer CHP2 is formed upward (refer to FIG. 12).

另一方面，在形成有IGBT的半導體晶片CHP1中，是以被形成於半導體晶片CHP1的背面之集極電極焊墊會經由導電性膏PST1來與晶片搭載部TAB1接觸的方式配置。 On the other hand, in the semiconductor wafer CHP1 in which the IGBT is formed, the collector electrode pads formed on the back surface of the semiconductor wafer CHP1 are placed in contact with the wafer mounting portion TAB1 via the conductive paste PST1.

並且，被形成於半導體晶片CHP1的表面之射極電極焊墊EP、及複數的電極焊墊之閘極電極焊墊GP、溫度檢測用電極焊墊TCP、溫度檢測用電極焊墊TAP、電流檢測用電極焊墊SEP、開爾文檢測用電極焊墊 KP是形成朝上(參照圖12)。 Further, the emitter electrode pad EP formed on the surface of the semiconductor wafer CHP1, the gate electrode pad GP of the plurality of electrode pads, the temperature detecting electrode pad TCP, the temperature detecting electrode pad TAP, and the current detecting Electrode pad SEP, Kelvin electrode pad for detection KP is formed upward (refer to Fig. 12).

另外，形成有IGBT的半導體晶片CHP1、及形成有二極體的半導體晶片CHP2的搭載順序是亦可半導體晶片CHP1為前，半導體晶片CHP2為後，或半導體晶片CHP2為前，半導體晶片CHP1為後。 Further, the semiconductor wafer CHP1 on which the IGBT is formed and the semiconductor wafer CHP2 on which the diode is formed may be mounted with the semiconductor wafer CHP1 as the front, the semiconductor wafer CHP2 as the rear, or the semiconductor wafer CHP2 as the front, and the semiconductor wafer CHP1 as the rear. .

然後，對於搭載有半導體晶片CHP1的晶片搭載部TAB1及搭載有半導體晶片CHP2的晶片搭載部TAB2實施加熱處理。 Then, the wafer mounting portion TAB1 on which the semiconductor wafer CHP1 is mounted and the wafer mounting portion TAB2 on which the semiconductor wafer CHP2 is mounted are subjected to heat treatment.

4.上治具配置工程 4. Upper fixture configuration project

接著，如圖20(a)及圖20(b)所示般，在下治具BJG的主面上配置上治具UJG。此時，如圖20(b)所示般，上治具UJG的上面是比被搭載於晶片搭載部TAB2上的半導體晶片CHP2的表面更高。同樣，雖未圖示，但上治具UJG的上面是比被搭載於晶片搭載部TAB1上的半導體晶片CHP1的表面更高。由圖20(b)可知，以下治具BJG的主面為基準的高度，是下治具BJG的主面<凸部CVX3的高度<晶片搭載部TAB2(晶片搭載部TAB1)的上面<半導體晶片CHP2(半導體晶片CHP1)的表面<上治具UJG的上面的關係會成立。 Next, as shown in FIGS. 20(a) and 20(b), the upper jig UJG is placed on the main surface of the lower jig BJG. At this time, as shown in FIG. 20(b), the upper surface of the upper fixture UJG is higher than the surface of the semiconductor wafer CHP2 mounted on the wafer mounting portion TAB2. Similarly, although not shown, the upper surface of the upper fixture UJG is higher than the surface of the semiconductor wafer CHP1 mounted on the wafer mounting portion TAB1. 20(b), the height of the main surface of the lower fixture BJG is the height of the main surface of the lower fixture BJG <the height of the convex portion CVX3 <the upper surface of the wafer mounting portion TAB2 (wafer mounting portion TAB1) <the semiconductor wafer The relationship between the surface of the CHP2 (semiconductor wafer CHP1) and the upper surface of the upper fixture UJG is established.

5.基材(導線架)準備工程 5. Substrate (lead frame) preparation project

其次，如圖21(a)及圖21(b)所示般，準備具備導線的導線架LF，且將此導線架LF配置於上治具UJG 上。此時，本實施形態1是藉由使上治具UJG介於下治具BJG與導線架LF之間，配置有導線架LF的高度會形成比半導體晶片CHP1(半導體晶片CHP2)的表面的高度更高。亦即，如圖20(b)所示般，在以下治具BJG的主面為基準的高度，下治具BJG的主面<凸部CVX3的高度<晶片搭載部TAB2(晶片搭載部TAB1)的上面<半導體晶片CHP2(半導體晶片CHP1)的表面<上治具UJG的上面的關係會成立，因此配置於上治具UJG上的導線架LF的高度是比半導體晶片CHP1(半導體晶片CHP2)的表面的高度更高。如此，上治具UJG是具有作為使配置有導線架LF的高度形成比半導體晶片CHP1(半導體晶片CHP2)的表面的高度更高的間隔物(spacer)之機能。 Next, as shown in Fig. 21 (a) and Fig. 21 (b), a lead frame LF having a lead wire is prepared, and this lead frame LF is placed on the upper jig UJG. on. At this time, in the first embodiment, by placing the upper jig UJG between the lower jig BJG and the lead frame LF, the height of the lead frame LF is arranged to be higher than the surface of the semiconductor wafer CHP1 (semiconductor wafer CHP2). higher. In other words, as shown in Fig. 20 (b), the height of the main surface of the lower fixture BJG <the height of the convex portion CVX3 <the wafer mounting portion TAB2 (wafer mounting portion TAB1) is the height of the main surface of the lower fixture BJG. The upper surface <the surface of the semiconductor wafer CHP2 (semiconductor wafer CHP1) <the upper fixture UJG is established, so the height of the lead frame LF disposed on the upper fixture UJG is higher than that of the semiconductor wafer CHP1 (semiconductor wafer CHP2) The height of the surface is higher. In this way, the upper fixture UJG has a function of forming a spacer having a height higher than that of the surface of the semiconductor wafer CHP1 (semiconductor wafer CHP2) as a height at which the lead frame LF is disposed.

6.電性連接工程 6. Electrical connection engineering

接著，如圖22(a)及圖22(b)所示般，例如，藉由使用分配器DP，在半導體晶片CHP2的陽極電極焊墊ADP上供給導電性膏PST2(導電性接著材ADH2)，在半導體晶片CHP1的射極電極焊墊EP上也供給導電性膏PST2。而且，在導線的一部分領域上也供給導電性膏PST2(參照圖12)。 Then, as shown in FIGS. 22(a) and 22(b), for example, the conductive paste PST2 (conductive conductive material ADH2) is supplied onto the anode electrode pad ADP of the semiconductor wafer CHP2 by using the distributor DP. The conductive paste PST2 is also supplied to the emitter electrode pad EP of the semiconductor wafer CHP1. Further, the conductive paste PST2 is also supplied to a part of the wire (see FIG. 12).

此導電性膏PST2是例如亦可使用銀膏或高融點焊錫(焊錫膏)。此導電性膏PST2是亦可與上述導電性膏PST1同材料成分，或不同的材料成分。 For the conductive paste PST2, for example, a silver paste or a high melting point solder (solder paste) can be used. The conductive paste PST2 is a material component which may be the same as or different from the conductive paste PST1.

然後，電性連接導線(圖12的導線LD1A) 與半導體晶片CHP1，電性連接導線(圖12的導線LD1B)與半導體晶片CHP2。具體而言，首先，如圖22(a)所示般，藉由在半導體晶片CHP2的陽極電極焊墊ADP及導線(圖12的導線LD1B)搭載夾子CLP2，來電性連接陽極電極焊墊ADP與導線(圖12的導線LD1B)(參照圖12)。然後，如圖22(a)所示般，藉由在半導體晶片CHP1的射極電極焊墊EP及導線(圖12的導線LD1A)搭載夾子CLP1，來電性連接射極電極焊墊EP與導線(圖12的導線LD1A)(參照圖12)。此時，如圖22(a)所示般，以夾子CLP1能夠跨越夾子CLP2的一部分之方式，搭載夾子CLP1。藉由經此工程，導線架LF、晶片搭載部TAB1及晶片搭載部TAB2會一體化。然後，對於一體化的導線架LF、晶片搭載部TAB1及晶片搭載部TAB2實施加熱處理。 Then, electrically connect the wires (wire LD1A of Figure 12) The semiconductor wafer CHP1 is electrically connected to the wire (the wire LD1B of FIG. 12) and the semiconductor wafer CHP2. Specifically, first, as shown in FIG. 22(a), the anode electrode pad ADP and the anode electrode pad ADP are electrically connected by mounting the clip CLP2 on the anode electrode pad ADP of the semiconductor wafer CHP2 and the wire (the wire LD1B of FIG. 12). A wire (the wire LD1B of Fig. 12) (refer to Fig. 12). Then, as shown in FIG. 22(a), the emitter electrode pad EP and the wire are electrically connected by mounting the clip CLP1 on the emitter electrode pad EP of the semiconductor wafer CHP1 and the wire (the wire LD1A of FIG. 12). The wire LD1A) of Fig. 12 (refer to Fig. 12). At this time, as shown in FIG. 22(a), the clip CLP1 is mounted so that the clip CLP1 can pass over a part of the clip CLP2. By this process, the lead frame LF, the wafer mounting portion TAB1, and the wafer mounting portion TAB2 are integrated. Then, the integrated lead frame LF, the wafer mounting portion TAB1, and the wafer mounting portion TAB2 are subjected to heat treatment.

其次，如圖23所示般，將上治具UJG及下治具BJG卸下後，實施打線接合工程。例如圖11及圖12所示般，導線LD2與閘極電極焊墊GP會以接線W來電性連接，導線LD2與溫度檢測用電極焊墊TCP會以接線W來電性連接。並且，如圖11及圖12所示般，導線LD2與溫度檢測用電極焊墊TAP會以接線W來電性連接，導線LD2與電流檢測用電極焊墊SEP會以接線W來電性連接。而且，如圖12所示般，導線LD2與開爾文檢測用電極焊墊KP會以接線W來電性連接。在此，本實施形態1是如圖12所示般，由於導線LD2是被配置在與連接夾子 CLP1的導線LD1A或連接夾子CLP2的導線LD1B相反的側，因此可不用考慮接線W與夾子CLP1或夾子CLP2的干擾，實施打線接合工程。 Next, as shown in Fig. 23, after the upper jig UJG and the lower jig BJG are removed, the wire bonding process is carried out. For example, as shown in FIG. 11 and FIG. 12, the wire LD2 and the gate electrode pad GP are electrically connected by a wire, and the wire LD2 and the temperature detecting electrode pad TCP are electrically connected by a wire. Further, as shown in FIGS. 11 and 12, the wire LD2 and the temperature detecting electrode pad TAP are electrically connected by a wire, and the wire LD2 and the current detecting electrode pad SEP are electrically connected by a wire. Further, as shown in FIG. 12, the wire LD2 and the Kelvin detecting electrode pad KP are electrically connected by a wire. Here, the first embodiment is as shown in FIG. 12, since the wire LD2 is disposed in the connection clip. The wire LD1A of the CLP1 or the side opposite to the wire LD1B of the clip CLP2 is connected, so that the wire bonding process can be performed without considering the interference of the wire W with the clip CLP1 or the clip CLP2.

7.密封(模製)工程 7. Sealing (molding) engineering

其次，如圖24(a)及圖24(b)所示般，將半導體晶片CHP1、半導體晶片CHP2、晶片搭載部TAB1的一部分、晶片搭載部TAB2的一部分、導線LD1A的一部分、導線LD1B的一部分、複數的導線LD2的各自一部分、夾子CLP1、夾子CLP2及接線W密封而形成密封體MR。 Next, as shown in FIGS. 24(a) and 24(b), the semiconductor wafer CHP1, the semiconductor wafer CHP2, a part of the wafer mounting portion TAB1, a part of the wafer mounting portion TAB2, a part of the wiring LD1A, and a part of the wiring LD1B are formed. A part of the plurality of wires LD2, the clip CLP1, the clip CLP2, and the wire W are sealed to form a sealed body MR.

此時，在密封體MR中，如圖12所示般，導線LD1A及導線LD1B會從密封體MR的邊S1突出，且複數的導線LD2會從密封體MR的邊S2突出。而且，如圖12(b)及圖12(c)所示般，從密封體MR的下面是晶片搭載部TAB1的下面及晶片搭載部TAB2的下面會露出。另一方面，在本實施形態1中，在晶片搭載部TAB1及晶片搭載部TAB2的側面是形成有階差構造。因此，若根據本實施形態1，則由於階差形狀具有作為制止器(stopper)的機能，因此可防止晶片搭載部TAB1及晶片搭載部TAB2從密封體MR脫落。 At this time, in the sealing body MR, as shown in FIG. 12, the wire LD1A and the wire LD1B protrude from the side S1 of the sealing body MR, and the plurality of wires LD2 protrude from the side S2 of the sealing body MR. Further, as shown in FIGS. 12(b) and 12(c), the lower surface of the sealing body MR is exposed on the lower surface of the wafer mounting portion TAB1 and the lower surface of the wafer mounting portion TAB2. On the other hand, in the first embodiment, a stepped structure is formed on the side surfaces of the wafer mounting portion TAB1 and the wafer mounting portion TAB2. Therefore, according to the first embodiment, since the stepped shape has a function as a stopper, it is possible to prevent the wafer mounting portion TAB1 and the wafer mounting portion TAB2 from coming off the sealing body MR.

8.外裝電鍍工程 8. Exterior plating project

然後，切斷設在導線架LF的連結桿(Tie Bar)(未圖示)。然後，在從密封體MR的下面露出的晶片搭載部 TAB1、晶片搭載部TAB2、導線LD1A的一部分的表面、導線LD1B的一部分的表面及導線LD2的一部分的表面形成導體膜的電鍍層(錫膜)(參照圖12)。 Then, the tie bar (not shown) provided on the lead frame LF is cut off. Then, the wafer mounting portion exposed from the lower surface of the sealing body MR TAB1, the wafer mounting portion TAB2, a surface of a part of the wire LD1A, a surface of a part of the wire LD1B, and a surface of a part of the wire LD2 form a plating layer (tin film) of the conductor film (see FIG. 12).

9.標記工程 9. Marking engineering

然後，在由樹脂所構成的密封體MR的表面形成製品名或型號等的資訊(標記)。另外，標記的形成方法是可使用藉由印刷方式來印字的方法或藉由將雷射照射於密封體的表面而刻印的方法。 Then, information (mark) such as the product name or the model number is formed on the surface of the sealing body MR made of a resin. Further, the method of forming the mark can be a method of printing by printing or a method of imprinting by irradiating a laser onto the surface of the sealing body.

10.小片化工程 10. Small piece engineering

接著，藉由切斷導線LD1A的一部分、導線LD1B的一部分及複數的導線LD2的各自一部分，來使導線LD1A、導線LD1B及複數的導線LD2從導線架LF分離(參照圖12)。藉此，例如，可製造如圖12所示那樣的本實施形態1的半導體裝置PAC1。然後，分別將導線LD1A、導線LD1B及複數的第2導線LD2成形。然後，例如，實施測試電性特性的測試工程後，將被判定成良品的半導體裝置PAC1出貨。如以上般，可製造本實施形態1的半導體裝置PAC1。 Next, the wire LD1A, the wire LD1B, and the plurality of wires LD2 are separated from the lead frame LF by cutting a part of the wire LD1A, a part of the wire LD1B, and a part of the plurality of wires LD2 (see FIG. 12). Thereby, for example, the semiconductor device PAC1 of the first embodiment as shown in FIG. 12 can be manufactured. Then, the wire LD1A, the wire LD1B, and the plurality of second wires LD2 are respectively formed. Then, for example, after performing a test project for testing electrical characteristics, the semiconductor device PAC1 determined to be good is shipped. As described above, the semiconductor device PAC1 of the first embodiment can be manufactured.

<下治具與上治具和導線架的對位> <The position of the lower fixture and the upper fixture and the lead frame>

上述本實施形態1的半導體裝置的製造方法，由於使用下治具BJG及上治具UJG，因此需要下治具BJG與上 治具UJG和導線架LF的對位。於是，本實施形態1是針對下治具BJG與上治具UJG和導線架LF的對位下工夫，以下，從著眼於下治具BJG與上治具UJG和導線架LF的對位之觀點，一邊參照圖面，一邊說明有關此工夫點。 In the method for manufacturing a semiconductor device according to the first embodiment, since the lower fixture BJG and the upper fixture UJG are used, the lower fixture BJG and the upper part are required. The alignment of the fixture UJG and the lead frame LF. Therefore, the first embodiment is directed to the alignment of the lower fixture BJG and the upper fixture UJG and the lead frame LF. Hereinafter, from the viewpoint of the alignment of the lower fixture BJG and the upper fixture UJG and the lead frame LF, While referring to the drawing, we will explain the point of this work.

圖25(a)是表示在本實施形態1中，在下治具BJG上配置晶片搭載部TAB1及晶片搭載部TAB2的狀態的平面圖。圖25(b)是在圖25(a)的A-A線切斷的剖面圖，圖25(c)是在圖25(a)的B-B線切斷的剖面圖。如圖25(a)及圖25(c)所示般，在本實施形態1的下治具BJG是設有貫通孔TH1(凹部)。此貫通孔TH1是例如以圖25(a)所示的1個凸部CVX1的位置為基準而設。 (a) of FIG. 25 is a plan view showing a state in which the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are placed on the lower fixture BJG in the first embodiment. Fig. 25 (b) is a cross-sectional view taken along line A-A of Fig. 25 (a), and Fig. 25 (c) is a cross-sectional view taken along line B-B of Fig. 25 (a). As shown in Fig. 25 (a) and Fig. 25 (c), the lower jig BJG of the first embodiment is provided with a through hole TH1 (recessed portion). This through hole TH1 is provided, for example, based on the position of one convex portion CVX1 shown in FIG. 25(a).

接著，圖26(a)是表示在本實施形態1中，在下治具BJG上配置上治具UJG的狀態的平面圖。並且，圖26(b)是在圖26(a)的A-A線切斷的剖面圖，圖26(c)是在圖26(a)的B-B線切斷的剖面圖。如圖26(a)及圖26(c)所示般，在本實施形態1的上治具UJG是設有突出至下側的凸部CVX4及突出至上側的凸部CVX5。該等的凸部CVX4及凸部CVX5是例如以圖26(a)所示的1個凸部CVX1的位置為基準而設。因此，設在下治具BJG的貫通孔TH1、及設在上治具UJG的凸部CVX4是以同對象(凸部CVX1)作為基準形成於同位置，所以如圖26(c)所示般，設在上治具UJG的凸部CVX4是可插入設在下治具BJG的貫通孔TH1。此結果， 藉由在貫通孔TH1中插入凸部CVX4，實施下治具BJG與上治具UJG的對位。 Next, Fig. 26 (a) is a plan view showing a state in which the upper fixture UJG is placed on the lower fixture BJG in the first embodiment. 26(b) is a cross-sectional view taken along line A-A of FIG. 26(a), and FIG. 26(c) is a cross-sectional view taken along line B-B of FIG. 26(a). As shown in Fig. 26 (a) and Fig. 26 (c), the upper jig UJG of the first embodiment is provided with a convex portion CVX4 protruding to the lower side and a convex portion CVX5 protruding to the upper side. The convex portions CVX4 and the convex portions CVX5 are provided, for example, based on the position of one convex portion CVX1 shown in Fig. 26(a). Therefore, the through hole TH1 provided in the lower fixture BJG and the convex portion CVX4 provided in the upper jig UJG are formed at the same position with respect to the same object (the convex portion CVX1), and therefore, as shown in Fig. 26(c), The convex portion CVX4 provided in the upper jig UJG is a through hole TH1 that can be inserted into the lower jig BJG. This result, The alignment of the lower jig BJG and the upper jig UJG is performed by inserting the convex portion CVX4 into the through hole TH1.

其次，圖27(a)是表示在本實施形態1中，在上治具UJG上配置導線架LF的狀態的平面圖。又，圖27(b)是在圖27(a)的A-A線切斷的剖面圖，圖27(c)是在圖27(a)的B-B線切斷的剖面圖。如圖27(a)及圖27(c)所示般，在本實施形態1的導線架LF中設有貫通孔TH2。此貫通孔TH2是例如以圖27(a)所示的1個凸部CVX1的位置作為基準而設。因此，設在上治具UJG的凸部CVX5、及設在導線架LF的貫通孔TH2是以同對象(凸部CVX1)為基準形成於同位置，所以如圖27(c)所示般，設在上治具UJG的凸部CVX5是可插入設在導線架LF的貫通孔TH2。此結果，藉由在貫通孔TH2中插入凸部CVX5，實施上治具UJG與導線架LF的對位。 Next, Fig. 27 (a) is a plan view showing a state in which the lead frame LF is placed on the upper jig UJG in the first embodiment. 27(b) is a cross-sectional view taken along line A-A of FIG. 27(a), and FIG. 27(c) is a cross-sectional view taken along line B-B of FIG. 27(a). As shown in Fig. 27 (a) and Fig. 27 (c), the lead frame LF of the first embodiment is provided with a through hole TH2. This through hole TH2 is provided, for example, based on the position of one convex portion CVX1 shown in FIG. 27(a). Therefore, the convex portion CVX5 provided in the upper jig UJG and the through hole TH2 provided in the lead frame LF are formed at the same position with respect to the same object (the convex portion CVX1), and therefore, as shown in Fig. 27(c), The convex portion CVX5 provided in the upper jig UJG is inserted into the through hole TH2 provided in the lead frame LF. As a result, the alignment of the upper jig UJG and the lead frame LF is performed by inserting the convex portion CVX5 into the through hole TH2.

以上，若根據本實施形態1的半導體裝置的製造工程，則藉由在貫通孔TH1中插入凸部CVX4，且在貫通孔TH2中插入凸部CVX5，實現下治具BJG和上治具UJG與導線架LF的對位。 As described above, according to the manufacturing process of the semiconductor device of the first embodiment, the convex portion CVX4 is inserted into the through hole TH1, and the convex portion CVX5 is inserted into the through hole TH2, thereby realizing the lower jig BJG and the upper jig UJG. The alignment of the lead frame LF.

<實施形態1的特徵> <Features of Embodiment 1>

接著，一邊參照圖面，一邊說明有關本實施形態1的特徵點。圖28是表示以下治具BJG來固定晶片搭載部TAB1及晶片搭載部TAB2的狀態的模式圖。如圖28所示 般，在下治具BJG設有凸部CVX1及凸部CVX2，藉由凸部CVX1來固定晶片搭載部TAB1。同樣，藉由凸部CVX2來固定晶片搭載部TAB2。 Next, the feature points of the first embodiment will be described with reference to the drawings. FIG. 28 is a schematic view showing a state in which the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are fixed by the jig BJG. As shown in Figure 28 In the lower fixture BJG, the convex portion CVX1 and the convex portion CVX2 are provided, and the wafer mounting portion TAB1 is fixed by the convex portion CVX1. Similarly, the wafer mounting portion TAB2 is fixed by the convex portion CVX2.

而且，如圖28所示般，晶片搭載部TAB1是具有：側面SSF1、及與此側面SSF1對向的側面SSF2、以及與側面SSF1及側面SSF2交叉，彼此對向的側面SSF5及側面SSF6。 Further, as shown in FIG. 28, the wafer mounting portion TAB1 has a side surface SSF1, a side surface SSF2 opposed to the side surface SSF1, and a side surface SSF5 and a side surface SSF6 that intersect the side surface SSF1 and the side surface SSF2.

另一方面，如圖28所示般，晶片搭載部TAB2是具有：側面SSF3、及與此側面SSF3對向的側面SSF4、以及與側面SSF3及側面SSF4交叉，彼此對向的側面SSF7及側面SSF8。 On the other hand, as shown in FIG. 28, the wafer mounting portion TAB2 has a side surface SSF3, a side surface SSF4 opposed to the side surface SSF3, and a side surface SSF7 and a side surface SSF8 which intersect with the side surface SSF3 and the side surface SSF4. .

此時，晶片搭載部TAB1與晶片搭載部TAB2是以晶片搭載部TAB1的側面SSF2與晶片搭載部TAB2的側面SSF3能夠對向的方式配置。在此，本實施形態1的第1特徵點是藉由將彼此對向的側面SSF5及側面SSF6推壓於凸部CVX1來固定晶片搭載部TAB1的點。詳細是分別在晶片搭載部TAB1的側面SSF5及側面SSF6設有缺口部CS1，在此缺口部CS1嵌入凸部CVX1，藉此晶片搭載部TAB1會以凸部CVX1來固定。換言之，本實施形態1的第1特徵點是藉由將凸部CVX1推壓於晶片搭載部TAB1的側面SSF2以外的側面之側面SSF5及側面SSF6來固定晶片搭載部TAB1，另一方面，不設對應於晶片搭載部TAB1的側面SSF2的凸部CVX1的點。亦即，本實施形態1的第1特徵點是不設對應於晶片搭載部TAB1的 側面SSF2的凸部CVX1，且設置對應於與晶片搭載部TAB1的側面SSF2不同的側面的凸部CVX1，藉此固定晶片搭載部TAB1的點。 At this time, the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are disposed such that the side surface SSF2 of the wafer mounting portion TAB1 and the side surface SSF3 of the wafer mounting portion TAB2 can face each other. Here, the first feature point in the first embodiment is a point at which the wafer mounting portion TAB1 is fixed by pressing the side surface SSF5 and the side surface SSF6 facing each other to the convex portion CVX1. Specifically, the notch portion CS1 is provided on the side surface SSF5 and the side surface SSF6 of the wafer mounting portion TAB1, and the notch portion CS1 is fitted into the convex portion CVX1, whereby the wafer mounting portion TAB1 is fixed by the convex portion CVX1. In other words, the first feature point of the first embodiment is that the wafer mounting portion TAB1 is fixed by pressing the convex portion CVX1 on the side surface SSF5 and the side surface SSF6 of the side surface other than the side surface SSF2 of the wafer mounting portion TAB1. A point corresponding to the convex portion CVX1 of the side surface SSF2 of the wafer mounting portion TAB1. In other words, the first feature of the first embodiment is that no corresponding to the wafer mounting portion TAB1 is provided. The convex portion CVX1 of the side surface SSF2 is provided with a convex portion CVX1 corresponding to a side surface different from the side surface SSF2 of the wafer mounting portion TAB1, thereby fixing the point of the wafer mounting portion TAB1.

同樣，本實施形態1的第1特徵點是藉由將凸部CVX2推壓於彼此對向的側面SSF7及側面SSF8來固定晶片搭載部TAB2的點。詳細是分別在晶片搭載部TAB2的側面SSF7及側面SSF8設有缺口部CS2，在此缺口部CS2嵌入凸部CVX2，藉此晶片搭載部TAB2會以凸部CVX2來固定。換言之，本實施形態1的第1特徵點是藉由將凸部CVX2推壓於晶片搭載部TAB2的側面SSF3以外的側面之側面SSF7及側面SSF8來固定晶片搭載部TAB2，另一方面，不設對應於晶片搭載部TAB1的側面SSF2的凸部CVX1的點。亦即，本實施形態1的第1特徵點是不設對應於晶片搭載部TAB2的側面SSF3的凸部CVX2，且設置對應於與晶片搭載部TAB1的側面SSF3不同的側面的凸部CVX2，藉此固定晶片搭載部TAB2的點。 Similarly, the first feature point in the first embodiment is a point at which the wafer mounting portion TAB2 is fixed by pressing the convex portion CVX2 against the side surface SSF7 and the side surface SSF8 opposed to each other. Specifically, the notch portion CS2 is provided on the side surface SSF7 and the side surface SSF8 of the wafer mounting portion TAB2, and the notch portion CS2 is fitted into the convex portion CVX2, whereby the wafer mounting portion TAB2 is fixed by the convex portion CVX2. In other words, the first feature point of the first embodiment is that the wafer mounting portion TAB2 is fixed by pressing the convex portion CVX2 on the side surface SSF7 and the side surface SSF8 of the side surface other than the side surface SSF3 of the wafer mounting portion TAB2. A point corresponding to the convex portion CVX1 of the side surface SSF2 of the wafer mounting portion TAB1. In other words, the first feature point of the first embodiment is that the convex portion CVX2 corresponding to the side surface SSF3 of the wafer mounting portion TAB2 is not provided, and the convex portion CVX2 corresponding to the side surface different from the side surface SSF3 of the wafer mounting portion TAB1 is provided. This fixes the point of the wafer mounting portion TAB2.

藉此，以設在下治具BJG的凸部CVX1來固定晶片搭載部TAB1，且以設在下治具BJG的凸部CVX2來固定晶片搭載部TAB2，可固定配置晶片搭載部TAB1及晶片搭載部TAB2，另一方面，可縮小彼此對向的晶片搭載部TAB1的側面SSF2與晶片搭載部TAB2的側面SSF3之間的距離。其原因是因為如圖28所示般，不須為了晶片搭載部TAB1或晶片搭載部TAB2的定位，而在彼 此對向的晶片搭載部TAB1的側面SSF2與晶片搭載部TAB2的側面SSF3之間設置凸部CVX1或凸部CVX2。亦即，若根據本實施形態1，則即使在彼此對向的晶片搭載部TAB1的側面SSF2與晶片搭載部TAB2的側面SSF3之間不設凸部CVX1或凸部CVX2，還是可以實施晶片搭載部TAB1或晶片搭載部TAB2的定位。此情形意味不須在彼此對向的晶片搭載部TAB1的側面SSF2與晶片搭載部TAB2的側面SSF3之間確保凸部CVX1或凸部CVX2的空間，藉此，如圖28所示般，可縮小彼此對向的晶片搭載部TAB1的側面SSF2與晶片搭載部TAB2的側面SSF3之間的距離L。此結果，若根據本實施形態1，則可使晶片搭載部TAB1及晶片搭載部TAB2一邊提升定位精度，一邊謀求半導體裝置的小型化。 By this, the wafer mounting portion TAB1 is fixed by the convex portion CVX1 of the lower fixture BJG, and the wafer mounting portion TAB2 is fixed by the convex portion CVX2 provided in the lower fixture BJG, whereby the wafer mounting portion TAB1 and the wafer mounting portion TAB2 can be fixedly arranged. On the other hand, the distance between the side surface SSF2 of the wafer mounting portion TAB1 facing each other and the side surface SSF3 of the wafer mounting portion TAB2 can be reduced. This is because, as shown in FIG. 28, it is not necessary to position the wafer mounting portion TAB1 or the wafer mounting portion TAB2. A convex portion CVX1 or a convex portion CVX2 is provided between the side surface SSF2 of the opposite wafer mounting portion TAB1 and the side surface SSF3 of the wafer mounting portion TAB2. In other words, according to the first embodiment, the wafer mounting portion can be implemented without providing the convex portion CVX1 or the convex portion CVX2 between the side surface SSF2 of the wafer mounting portion TAB1 and the side surface SSF3 of the wafer mounting portion TAB2. Positioning of TAB1 or wafer mounting portion TAB2. In this case, it is not necessary to secure the space of the convex portion CVX1 or the convex portion CVX2 between the side surface SSF2 of the wafer mounting portion TAB1 and the side surface SSF3 of the wafer mounting portion TAB2, and as shown in FIG. The distance L between the side surface SSF2 of the wafer mounting portion TAB1 facing each other and the side surface SSF3 of the wafer mounting portion TAB2. As a result, according to the first embodiment, the wafer mounting portion TAB1 and the wafer mounting portion TAB2 can be made smaller in size while improving the positioning accuracy.

亦即，若根據本實施形態1，則首先以設在下治具BJG的凸部CVX1來固定晶片搭載部TAB1，且以設在下治具BJG的凸部CVX2來固定晶片搭載部TAB2。此結果，可提升晶片搭載部TAB1及晶片搭載部TAB2的定位精度。此情形是意味不易產生晶片搭載部TAB1的配置位置及晶片搭載部TAB2的配置位置的位移，位移被抑制到最小限度的結果，即使縮小晶片搭載部TAB1與晶片搭載部TAB2之間的距離，還是可抑制位移所引起之晶片搭載部TAB1與晶片搭載部TAB2的接觸(第1優點)。 In the first embodiment, the wafer mounting portion TAB1 is fixed by the convex portion CVX1 provided in the lower jig BJG, and the wafer mounting portion TAB2 is fixed by the convex portion CVX2 provided in the lower jig BJG. As a result, the positioning accuracy of the wafer mounting portion TAB1 and the wafer mounting portion TAB2 can be improved. In this case, it is meant that the displacement of the arrangement position of the wafer mounting portion TAB1 and the arrangement position of the wafer mounting portion TAB2 is less likely to occur, and the displacement is suppressed to a minimum. Even if the distance between the wafer mounting portion TAB1 and the wafer mounting portion TAB2 is reduced, Contact between the wafer mounting portion TAB1 and the wafer mounting portion TAB2 due to displacement can be suppressed (first advantage).

而且，本實施形態1是不設對應於晶片搭載部TAB1的側面SSF2之凸部CVX1，且不設對應於晶片 搭載部TAB2的側面SSF3之凸部CVX2，因此不須在彼此對向的晶片搭載部TAB1的側面SSF2與晶片搭載部TAB2的側面SSF3之間確保配置凸部CVX1或凸部CVX2的空間。因此，可儘可能縮小晶片搭載部TAB1與晶片搭載部TAB2之間的距離(第2優點)。 Further, in the first embodiment, the convex portion CVX1 corresponding to the side surface SSF2 of the wafer mounting portion TAB1 is not provided, and is not provided corresponding to the wafer. Since the convex portion CVX2 of the side surface SSF3 of the mounting portion TAB2 is provided, it is not necessary to secure a space in which the convex portion CVX1 or the convex portion CVX2 is disposed between the side surface SSF2 of the wafer mounting portion TAB1 and the side surface SSF3 of the wafer mounting portion TAB2. Therefore, the distance between the wafer mounting portion TAB1 and the wafer mounting portion TAB2 can be reduced as much as possible (second advantage).

因此，若根據本實施形態1的第1特徵點，則可取得上述的第1優點及第2優點，藉由此第1優點與第2優點的相乘效果，可取得使晶片搭載部TAB1及晶片搭載部TAB2一邊謀求定位精度的提升，一邊能實現半導體裝置的小型化之顯著的效果。 Therefore, according to the first feature point of the first embodiment, the above-described first and second advantages can be obtained, and the wafer mounting portion TAB1 and the wafer mounting portion TAB1 can be obtained by the synergistic effect between the first advantage and the second advantage. The wafer mounting portion TAB2 can achieve a remarkable effect of miniaturization of the semiconductor device while improving the positioning accuracy.

例如，由謀求功率模組的高性能化或小型化的觀點來看，使用被封裝化的半導體裝置(封裝品)，作為對應於SR馬達專用的反相器電路之功率模組的構成零件時，從SR馬達專用的反相器電路的性質，在封裝品中需要彼此被電性分離的2個晶片搭載部。 For example, when a power module is used for high performance or miniaturization, a packaged semiconductor device (package) is used as a component of a power module corresponding to an inverter circuit dedicated to the SR motor. The nature of the inverter circuit dedicated to the SR motor requires two wafer mounting portions that are electrically separated from each other in the package.

基於此情形，特別是為了使SR馬達專用的封裝品小型化，而產生雖彼此電性分離晶片搭載部TAB1與晶片搭載部TAB2，但儘可能接近配置的必要性。基於此情形，在SR馬達專用的封裝品的製造工程中，期望可正確地定位晶片搭載部TAB1及晶片搭載部TAB2來接近配置的技術。 In this case, in particular, in order to miniaturize the package for the SR motor, the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are electrically separated from each other, but the arrangement is as close as possible. In this case, in the manufacturing process of the package for the SR motor, it is desirable to be able to accurately position the wafer mounting portion TAB1 and the wafer mounting portion TAB2 to approach the arrangement.

有關於此點，適用本實施形態1的半導體裝置，作為上述SR馬達專用的封裝品時，若根據本實施形態1，則藉由具有上述特徵點的下治具BJG，可一邊謀求 晶片搭載部TAB1及晶片搭載部TAB2的定位精度的提升，一邊儘可能接近配置。此結果，藉由使用具有本實施形態1的特徵點之下治具BJG，特別是在SR馬達專用的半導體裝置中，可使晶片搭載部TAB1及晶片搭載部TAB2一邊謀求定位精度的提升，一邊實現半導體裝置的小型化。 In this case, when the semiconductor device of the first embodiment is applied as the package for the SR motor, according to the first embodiment, the lower fixture BJG having the above-described characteristic points can be used. The positioning accuracy of the wafer mounting portion TAB1 and the wafer mounting portion TAB2 is improved as close as possible to the arrangement. As a result, by using the fixture BJG having the feature point of the first embodiment, in particular, in the semiconductor device dedicated to the SR motor, the wafer mounting portion TAB1 and the wafer mounting portion TAB2 can be improved in positioning accuracy. A miniaturization of a semiconductor device is achieved.

其次，一邊將本實施形態1的技術思想的優越性與第1關聯技術及第2關聯技術作對比，一邊說明。 Next, the advantages of the technical idea of the first embodiment will be described in comparison with the first related art and the second related art.

例如，圖29是說明第1關聯技術的圖。在圖29中，在晶片搭載部TAB1是分別對應於晶片搭載部TAB1的4個側面(側面SSF1、側面SSF2、側面SSF5、側面SSF6)而設有凸部CVX1。同樣，在晶片搭載部TAB2是分別對應於晶片搭載部TAB2的4個側面(側面SSF3、側面SSF4、側面SSF7、側面SSF8)而設有凸部CVX2。 For example, FIG. 29 is a diagram for explaining the first related art. In FIG. 29, the wafer mounting portion TAB1 is provided with convex portions CVX1 corresponding to the four side faces (side surface SSF1, side surface SSF2, side surface SSF5, and side surface SSF6) of the wafer mounting portion TAB1, respectively. Similarly, the wafer mounting portion TAB2 is provided with convex portions CVX2 corresponding to the four side faces (the side surface SSF3, the side surface SSF4, the side surface SSF7, and the side surface SSF8) of the wafer mounting portion TAB2.

因此，在第1關聯技術中也是晶片搭載部TAB1會以凸部CVX1來固定，且晶片搭載部TAB2會以凸部CVX2來固定，所以可想像能夠謀求晶片搭載部TAB1及晶片搭載部TAB2的定位精度的提升。 Therefore, in the first related art, the wafer mounting portion TAB1 is fixed by the convex portion CVX1, and the wafer mounting portion TAB2 is fixed by the convex portion CVX2. Therefore, it is conceivable that the wafer mounting portion TAB1 and the wafer mounting portion TAB2 can be positioned. Increased precision.

可是，第1關聯技術是與本實施形態1不同，如圖29所示般，在彼此對向的晶片搭載部TAB1的側面SSF2與晶片搭載部TAB2的側面SSF3之間設有凸部CVX1及凸部CVX2。 In the first related art, unlike the first embodiment, as shown in FIG. 29, a convex portion CVX1 and a convex portion are provided between the side surface SSF2 of the wafer mounting portion TAB1 facing each other and the side surface SSF3 of the wafer mounting portion TAB2. Department CVX2.

此結果，若根據第1關聯技術，則需要在彼 此對向的晶片搭載部TAB1的側面SSF2與晶片搭載部TAB2的側面SSF3之間確保配置凸部CVX1及凸部CVX2的空間，圖29所示的距離L會變大。這意味第1關聯技術難以縮小晶片搭載部TAB1與晶片搭載部TAB2之間的距離L，因此可知在第1關聯技術中，由謀求具有彼此分離的2個晶片搭載部之半導體裝置的小型化的觀點來看存在改善的餘地。 This result, if according to the first related technology, A space in which the convex portion CVX1 and the convex portion CVX2 are disposed is secured between the side surface SSF2 of the wafer mounting portion TAB1 and the side surface SSF3 of the wafer mounting portion TAB2, and the distance L shown in FIG. 29 is increased. This means that it is difficult to reduce the distance L between the wafer mounting portion TAB1 and the wafer mounting portion TAB2 in the first related art. Therefore, in the first related art, it is known that the semiconductor device having two wafer mounting portions separated from each other is downsized. From the point of view, there is room for improvement.

接著，圖30是說明第2關聯技術的圖。在圖30中，在晶片搭載部TAB1是分別對應於呈矩形形狀的晶片搭載部TAB1的4個角部(角部CNR1A~CNR1D)而設有凸部CVX1。同樣，在晶片搭載部TAB2是分別對應於呈矩形形狀的晶片搭載部TAB2的4個角部(角部CNR2A~CNR2D)而設有凸部CVX2。 Next, Fig. 30 is a diagram for explaining the second related art. In FIG. 30, the wafer mounting portion TAB1 is provided with convex portions CVX1 corresponding to the four corner portions (corner portions CNR1A to CNR1D) of the rectangular wafer-shaped mounting portion TAB1. Similarly, the wafer mounting portion TAB2 is provided with convex portions CVX2 corresponding to the four corner portions (corner portions CNR2A to CNR2D) of the rectangular wafer-shaped mounting portion TAB2.

因此，在第2關聯技術中也是晶片搭載部TAB1會以凸部CVX1來固定，且晶片搭載部TAB2會以凸部CVX2來固定，所以可想像能夠謀求晶片搭載部TAB1及晶片搭載部TAB2的定位精度的提升。 Therefore, in the second related art, the wafer mounting portion TAB1 is fixed by the convex portion CVX1, and the wafer mounting portion TAB2 is fixed by the convex portion CVX2. Therefore, it is conceivable that the wafer mounting portion TAB1 and the wafer mounting portion TAB2 can be positioned. Increased precision.

可是，在第2關聯技術中是與本實施形態1不同，如圖30所示般，迴避與設在晶片搭載部TAB1的角部CNR1C之凸部CVX1、及與設在晶片搭載部TAB2的角部CNR2A之凸部CVX2的干擾的必要性會產生。同樣，在第2關聯技術中，迴避與設在晶片搭載部TAB1的角部CNR1D之凸部CVX1、及與設在晶片搭載部TAB2的角部CNR2B之凸部CVX2的干擾的必要性也會產生。 However, in the second related art, unlike the first embodiment, as shown in FIG. 30, the convex portion CVX1 provided at the corner portion CNR1C of the wafer mounting portion TAB1 and the corner provided at the wafer mounting portion TAB2 are avoided. The necessity of interference from the convex portion CVX2 of the CNR2A is generated. Similarly, in the second related art, the necessity of avoiding interference with the convex portion CVX1 provided at the corner portion CNR1D of the wafer mounting portion TAB1 and the convex portion CVX2 provided at the corner portion CNR2B of the wafer mounting portion TAB2 is also generated. .

此結果，若根據第2關聯技術，則為了迴避與凸部CVX1及凸部CVX2的干擾，在晶片搭載部TAB1與晶片搭載部TAB2之間需要確保空間，如圖30所示的距離L會變大。這意味在第2關聯技術也難以縮小晶片搭載部TAB1與晶片搭載部TAB2之間的距離L，因此可知在第2關聯技術中，由謀求具有彼此分離的2個晶片搭載部之半導體裝置的小型化的觀點來看存在改善的餘地。 As a result, according to the second related art, in order to avoid interference with the convex portion CVX1 and the convex portion CVX2, a space needs to be secured between the wafer mounting portion TAB1 and the wafer mounting portion TAB2, and the distance L shown in FIG. 30 changes. Big. This means that it is difficult to reduce the distance L between the wafer mounting portion TAB1 and the wafer mounting portion TAB2 in the second related art. Therefore, in the second related art, it is known that the semiconductor device having two wafer mounting portions separated from each other is small. From a point of view, there is room for improvement.

對於此，本實施形態1是如圖28所示般，以設在下治具BJG的凸部CVX1來固定晶片搭載部TAB1，且以設在下治具BJG的凸部CVX2來固定晶片搭載部TAB2。此結果，可提升晶片搭載部TAB1及晶片搭載部TAB2的定位精度。而且，在本實施形態1中，如圖28所示般，不設對應於晶片搭載部TAB1的側面SSF2之凸部CVX1，且不設對應於晶片搭載部TAB2的側面SSF3之凸部CVX2。基於此情形，若根據本實施形態1，則不須在彼此對向的晶片搭載部TAB1的側面SSF2與晶片搭載部TAB2的側面SSF3之間確保配置凸部CVX1或凸部CVX2的空間，因此可縮小晶片搭載部TAB1與晶片搭載部TAB2之間的距離L。藉此，若根據本實施形態1，則可取得一邊謀求晶片搭載部TAB1及晶片搭載部TAB2的定位精度的提升，一邊能實現半導體裝置的小型化之顯著的效果。亦即，若根據本實施形態1的技術思想，則可解消上述第1關聯技術或第2關聯技術中所存在的改善餘地，此結果，相對於上述第1關聯技術或第2關聯技術，本實 施形態1的技術思想是具有優越性。 In the first embodiment, as shown in FIG. 28, the wafer mounting portion TAB1 is fixed by the convex portion CVX1 provided in the lower jig BJG, and the wafer mounting portion TAB2 is fixed by the convex portion CVX2 provided in the lower jig BJG. As a result, the positioning accuracy of the wafer mounting portion TAB1 and the wafer mounting portion TAB2 can be improved. Further, in the first embodiment, as shown in FIG. 28, the convex portion CVX1 corresponding to the side surface SSF2 of the wafer mounting portion TAB1 is not provided, and the convex portion CVX2 corresponding to the side surface SSF3 of the wafer mounting portion TAB2 is not provided. In this case, according to the first embodiment, it is not necessary to secure a space in which the convex portion CVX1 or the convex portion CVX2 is disposed between the side surface SSF2 of the wafer mounting portion TAB1 and the side surface SSF3 of the wafer mounting portion TAB2. The distance L between the wafer mounting portion TAB1 and the wafer mounting portion TAB2 is reduced. According to the first embodiment, it is possible to obtain a remarkable effect of miniaturization of the semiconductor device while improving the positioning accuracy of the wafer mounting portion TAB1 and the wafer mounting portion TAB2. In other words, according to the technical idea of the first embodiment, the room for improvement in the first related art or the second related art can be eliminated. As a result, the first related art or the second related art is used. real The technical idea of the form 1 is superior.

接著，說明有關藉由本實施形態1的第1特徵點所取得的第3優點。在本實施形態1中，如圖28所示般，不設對應於晶片搭載部TAB1的側面SSF2之凸部CVX1，且不設對應於晶片搭載部TAB2的側面SSF3之凸部CVX2。基於此情形，例如圖31所示般，在本實施形態1所使用的下治具BJG是亦可作為固定1個大的晶片搭載部TAB之定位治具使用。 Next, a third advantage obtained by the first feature point of the first embodiment will be described. In the first embodiment, as shown in FIG. 28, the convex portion CVX1 corresponding to the side surface SSF2 of the wafer mounting portion TAB1 is not provided, and the convex portion CVX2 corresponding to the side surface SSF3 of the wafer mounting portion TAB2 is not provided. In this case, for example, as shown in FIG. 31, the lower fixture BJG used in the first embodiment can be used as a positioning jig for fixing one large wafer mounting portion TAB.

亦即，本實施形態1的下治具BJG是基本上假想使用在具有圖28所示那樣彼此分離的2個晶片搭載部之SR馬達專用的半導體裝置的製造工程。然後，藉由在如此的用途使用本實施形態1的下治具BJG，可取得一邊謀求晶片搭載部TAB1及晶片搭載部TAB2的定位精度的提升，一邊可實現半導體裝置的小型化之效果。 In other words, the lower fixture BJG of the first embodiment is a manufacturing process of a semiconductor device exclusively for SR motors having two wafer mounting portions separated from each other as shown in FIG. By using the lower fixture BJG of the first embodiment in the above-described manner, it is possible to obtain an effect of reducing the size of the semiconductor device while improving the positioning accuracy of the wafer mounting portion TAB1 and the wafer mounting portion TAB2.

但，本實施形態1的下治具BJG並非僅上述SR馬達專用的半導體裝置的製造工程，例如，亦可適用在具有1個晶片搭載部的PM馬達用的半導體裝置的製造工程。原因是因為藉由本實施形態1的第1特徵點，如圖28所示般，不設對應於晶片搭載部TAB1的側面SSF2的凸部CVX1，且設置對應於晶片搭載部TAB2的側面SSF3的凸部CVX2，所以不會有被該等的凸部CVX1妨礙的情形，如圖31所示般，可在下治具BJG配置1個大的晶片搭載部TAB。 However, the lower fixture BJG of the first embodiment is not limited to the manufacturing process of the semiconductor device for the SR motor, and can be applied to, for example, a semiconductor device for a PM motor having one wafer mounting portion. The reason for this is that the convex portion CVX1 corresponding to the side surface SSF2 of the wafer mounting portion TAB1 is not provided, and the convex portion corresponding to the side surface SSF3 of the wafer mounting portion TAB2 is provided as shown in FIG. Since the portion CVX2 is not obstructed by the convex portions CVX1, as shown in Fig. 31, one large wafer mounting portion TAB can be disposed in the lower fixture BJG.

如此，本實施形態1的下治具BJG是不僅可 使用在具有彼此分離的2個晶片搭載部的半導體裝置的製造工程，亦可使用在具有1個晶片搭載部的半導體裝置的製造工程，因此可為泛用性佳的定位治具。亦即，若根據本實施形態1的第1特徵點，則亦可取得能夠提供泛用性佳的定位治具之第3優點。 Thus, the lower fixture BJG of the first embodiment is not only The manufacturing process of the semiconductor device having the two wafer mounting portions separated from each other can be used in the manufacturing process of the semiconductor device having one wafer mounting portion. Therefore, it can be a general-purpose positioning fixture. In other words, according to the first feature point of the first embodiment, the third advantage of providing a positioning fixture having excellent versatility can be obtained.

接著，說明有關本實施形態1的第2特徵點。在圖28中，本實施形態1的第2特徵點是例如若著眼於晶片搭載部TAB1，則形成於晶片搭載部TAB1的側面SSF5的缺口部CS1與形成於晶片搭載部TAB1的側面SSF6的缺口部CS1之間的直線距離會比晶片搭載部TAB1的上面的一長邊的長度更長的點。亦即，本實施形態1的第2特徵點是形成於側面SSF5的缺口部CS1的y座標與形成於側面SSF6的缺口部CS1的y座標為不同的點。若以別的方式表達，則連結形成於側面SSF5的缺口部CS1與形成於側面SSF6的缺口部CS1的直線亦可與晶片搭載部TAB1的一長邊不是並行，或與晶片搭載部TAB1的一長邊所成的角度比0度更大。換言之，本實施形態1的第2特徵點是形成於側面SSF5的缺口部CS1與形成於側面SSF6的缺口部CS1的位置關係亦可為通過晶片搭載部TAB1的一長邊的中心，且對於延伸於y方向的中心線而言，處於非線對稱的關係。而且，若以別的表達方式記述本實施形態1的第2特徵點，則形成於側面SSF5的缺口部CS1中所嵌入的凸部CVX1的y座標與形成於側面SSF6的缺口部CS1中所嵌入的凸部CVX1的y座標亦可 為不同。另外，在此雖是著眼於晶片搭載部TAB1說明，但當然即使是著眼於晶片搭載部TAB2，同樣的關係也會成立。 Next, the second feature point in the first embodiment will be described. In the second feature of the first embodiment, for example, when the wafer mounting portion TAB1 is focused on, the notch portion CS1 formed on the side surface SSF5 of the wafer mounting portion TAB1 and the side surface SSF6 formed on the wafer mounting portion TAB1 are notched. The linear distance between the portions CS1 is longer than the length of one long side of the upper surface of the wafer mounting portion TAB1. In other words, the second feature of the first embodiment is that the y coordinate of the notch portion CS1 formed on the side surface SSF5 is different from the y coordinate of the notch portion CS1 formed on the side surface SSF6. If otherwise expressed, the line connecting the notch portion CS1 formed on the side surface SSF5 and the notch portion CS1 formed on the side surface SSF6 may not be parallel to one long side of the wafer mounting portion TAB1 or one of the wafer mounting portions TAB1. The angle formed by the long side is greater than 0 degrees. In other words, the second characteristic point of the first embodiment is that the positional relationship between the notch portion CS1 formed on the side surface SSF5 and the notch portion CS1 formed on the side surface SSF6 may be the center of one long side passing through the wafer mounting portion TAB1, and In the center line of the y direction, it is in a non-linear symmetry relationship. When the second feature point of the first embodiment is described in another embodiment, the y coordinate of the convex portion CVX1 formed in the notch portion CS1 of the side surface SSF5 and the notch portion CS1 formed on the side surface SSF6 are embedded. The y coordinate of the convex part CVX1 can also For the difference. In addition, although the description has been focused on the wafer mounting portion TAB1, it is a matter of course that the same relationship is established even if the wafer mounting portion TAB2 is focused.

若根據如此表現的本實施形態1的第2特徵點，則可取得以下所示的優點，因此針對此優點進行說明。 According to the second feature point of the first embodiment thus expressed, the advantages described below can be obtained. Therefore, the advantage will be described.

圖32是說明藉由本實施形態1的第2特徵點所取得的第1優點的圖。在圖32中，例如，點P1與點P2之間的距離是對應於圖28所示的晶片搭載部TAB1的一長邊的長度。另一方面，點P1與點P3之間的距離是形成於圖28所示的側面SSF5之缺口部CS1中所被嵌入的凸部CVX1與形成於側面SSF6的缺口部CS1中所被嵌入的凸部CVX1之間的距離，對應於藉由本實施形態1的第2特徵點所實現的距離。在此，基於方便起見，將點P1與點P2之間的距離稱為第1距離，將點P1與點P3之間的距離稱為第2距離。 Fig. 32 is a view for explaining the first advantage obtained by the second feature point in the first embodiment. In FIG. 32, for example, the distance between the point P1 and the point P2 is the length corresponding to one long side of the wafer mounting portion TAB1 shown in FIG. On the other hand, the distance between the point P1 and the point P3 is a convex portion CVX1 embedded in the notch portion CS1 of the side surface SSF5 shown in FIG. 28 and a convex portion embedded in the notch portion CS1 formed on the side surface SSF6. The distance between the portions CVX1 corresponds to the distance realized by the second feature point in the first embodiment. Here, for convenience, the distance between the point P1 and the point P2 is referred to as a first distance, and the distance between the point P1 and the point P3 is referred to as a second distance.

此時，在圖32中，例如，當對應於側面SSF5的凸部CVX1與對應於側面SSF6的凸部CVX1之間的距離成為第1距離時，若在對應於側面SSF5的凸部CVX1與對應於側面SSF6的凸部CVX1之間產生位移A1，則晶片搭載部TAB1的θ方向(旋轉方向)的偏差量是成為θ1。 At this time, in FIG. 32, for example, when the distance between the convex portion CVX1 corresponding to the side surface SSF5 and the convex portion CVX1 corresponding to the side surface SSF6 becomes the first distance, the convex portion CVX1 corresponding to the side surface SSF5 corresponds to When the displacement A1 is generated between the convex portions CVX1 of the side surface SSF6, the amount of deviation in the θ direction (rotational direction) of the wafer mounting portion TAB1 is θ1.

相對於此，在圖32中，例如，當對應於側面SSF5的凸部CVX1與對應於側面SSF6的凸部CVX1之間 的距離成為第2距離時，若在對應於側面SSF5的凸部CVX1與對應於側面SSF6的凸部CVX1之間產生位移A1，則晶片搭載部TAB1的θ方向(旋轉方向)的偏差量是成為θ2。 On the other hand, in FIG. 32, for example, between the convex portion CVX1 corresponding to the side surface SSF5 and the convex portion CVX1 corresponding to the side surface SSF6 When the distance is the second distance, when the displacement A1 is generated between the convex portion CVX1 corresponding to the side surface SSF5 and the convex portion CVX1 corresponding to the side surface SSF6, the amount of deviation in the θ direction (rotational direction) of the wafer mounting portion TAB1 is Θ2.

亦即，對應於側面SSF5的凸部CVX1與對應於側面SSF6的凸部CVX1之間的距離越長，相對於同位移A1的晶片搭載部TAB1的θ方向(旋轉方向)的偏差量越小。此情形是意味對應於側面SSF5的凸部CVX1與對應於側面SSF6的凸部CVX1之間的距離越長，越可縮小相對於凸部CVX1的位移之晶片搭載部TAB1的θ方向(旋轉方向)的偏差量。亦即，對應於側面SSF5的凸部CVX1與對應於側面SSF6的凸部CVX1之間的距離越長，越提升晶片搭載部TAB1的定位精度。於是，本實施形態1是採用：例如圖28所示般，以對應於側面SSF5的凸部CVX1的y座標與對應於側面SSF6的凸部CVX1的y座標會不同的方式配置各凸部CVX1之第2特徵點。基於此情形，若根據本實施形態1，則對應於側面SSF5的凸部CVX1與對應於側面SSF6的凸部CVX1之間的距離變長的結果，可取得能夠提升晶片搭載部TAB1的定位精度之第1優點。 In other words, the longer the distance between the convex portion CVX1 corresponding to the side surface SSF5 and the convex portion CVX1 corresponding to the side surface SSF6, the smaller the amount of deviation from the θ direction (rotational direction) of the wafer mounting portion TAB1 of the same displacement A1. In this case, it is meant that the longer the distance between the convex portion CVX1 corresponding to the side surface SSF5 and the convex portion CVX1 corresponding to the side surface SSF6, the smaller the θ direction (rotational direction) of the wafer mounting portion TAB1 with respect to the displacement of the convex portion CVX1. The amount of deviation. In other words, the longer the distance between the convex portion CVX1 corresponding to the side surface SSF5 and the convex portion CVX1 corresponding to the side surface SSF6, the higher the positioning accuracy of the wafer mounting portion TAB1. Therefore, in the first embodiment, as shown in FIG. 28, each convex portion CVX1 is disposed such that the y coordinate of the convex portion CVX1 corresponding to the side surface SSF5 and the y coordinate of the convex portion CVX1 corresponding to the side surface SSF6 are different. The second feature point. In this case, according to the first embodiment, the distance between the convex portion CVX1 corresponding to the side surface SSF5 and the convex portion CVX1 corresponding to the side surface SSF6 is increased, and the positioning accuracy of the wafer mounting portion TAB1 can be improved. The first advantage.

接著，說明有關藉由本實施形態1的第2特徵點所取得的第2優點。如圖28所示般，藉由本實施形態1的第2特徵點，形成於側面SSF5的缺口部CS1與形成於側面SSF6的缺口部CS1的位置關係是對於通過晶片 搭載部TAB1的一長邊的中心，且延伸於y方向的中心線，形成非線對稱的關係。因此，例如，因作業失誤，而將晶片搭載部TAB1的表背配置成相反時，由於無法將晶片搭載部TAB1嵌入凸部CVX1，所以若根據本實施形態1的第2特徵點，則可取得能將作業失誤的發生防範於未然之第2優點。 Next, the second advantage obtained by the second feature point of the first embodiment will be described. As shown in FIG. 28, in the second feature point of the first embodiment, the positional relationship between the notch portion CS1 formed on the side surface SSF5 and the notch portion CS1 formed on the side surface SSF6 is for the pass wafer. The center of one long side of the mounting portion TAB1 extends in the center line in the y direction to form a non-linear symmetrical relationship. Therefore, for example, when the front and back of the wafer mounting portion TAB1 are arranged to be reversed due to an operation error, the wafer mounting portion TAB1 cannot be fitted into the convex portion CVX1. Therefore, the second characteristic point according to the first embodiment can be obtained. It is possible to prevent the occurrence of homework errors from being the second advantage.

<變形例1> <Modification 1>

其次，說明有關本實施形態1的變形例1。圖33是表示以本變形例1的下治具BJG來固定晶片搭載部TAB1及晶片搭載部TAB2的狀態的模式圖。例如，若著眼於晶片搭載部TAB1，則如圖33所示般，對應於晶片搭載部TAB1的側面SSF5之凸部CVX1、及對應於晶片搭載部TAB1的側面SSF6之凸部CVX1是亦可配置成與構成呈長方形形狀的晶片搭載部TAB1的上面之一長邊並行。換言之，亦可以對應於側面SSF5的凸部CVX1的y座標與對應於側面SSF6的凸部CVX1的y座標能夠一致的方式配置各凸部CVX1。 Next, a first modification of the first embodiment will be described. FIG. 33 is a schematic view showing a state in which the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are fixed by the lower fixture BJG of the first modification. For example, when the wafer mounting portion TAB1 is focused on, the convex portion CVX1 corresponding to the side surface SSF5 of the wafer mounting portion TAB1 and the convex portion CVX1 corresponding to the side surface SSF6 of the wafer mounting portion TAB1 may be arranged as shown in FIG. It is parallel to one of the upper sides of the upper surface of the wafer mounting portion TAB1 which is formed in a rectangular shape. In other words, each convex portion CVX1 may be disposed so that the y coordinate of the convex portion CVX1 of the side surface SSF5 and the y coordinate of the convex portion CVX1 corresponding to the side surface SSF6 can match each other.

同樣，若著眼於晶片搭載部TAB2，則對應於晶片搭載部TAB2的側面SSF7之凸部CVX2、及對應於晶片搭載部TAB2的側面SSF8之凸部CVX2是亦可配置成與構成呈長方形形狀的晶片搭載部TAB2的上面之一長邊並行。換言之，亦可以對應於側面SSF7的凸部CVX2的y座標與對應於側面SSF8的凸部CVX2的y座標能夠 一致的方式配置各凸部CVX1。 Similarly, when focusing on the wafer mounting portion TAB2, the convex portion CVX2 corresponding to the side surface SSF7 of the wafer mounting portion TAB2 and the convex portion CVX2 corresponding to the side surface SSF8 of the wafer mounting portion TAB2 may be arranged to have a rectangular shape. One of the upper sides of the upper surface of the wafer mounting portion TAB2 is parallel. In other words, it is also possible to correspond to the y coordinate of the convex portion CVX2 of the side surface SSF7 and the y coordinate of the convex portion CVX2 corresponding to the side surface SSF8. Each convex portion CVX1 is arranged in a uniform manner.

<變形例2> <Modification 2>

接著，說明有關本實施形態1的變形例2。圖34是表示以本變形例2的下治具BJG來固定晶片搭載部TAB1及晶片搭載部TAB2的狀態的模式圖。如圖34所示般，凸部CVX1的平面形狀或凸部CVX2的平面形狀是不限於實施形態1那樣的圓形形狀，亦可形成三角形形狀。 Next, a modification 2 of the first embodiment will be described. FIG. 34 is a schematic view showing a state in which the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are fixed by the lower fixture BJG of the second modification. As shown in FIG. 34, the planar shape of the convex portion CVX1 or the planar shape of the convex portion CVX2 is not limited to the circular shape as in the first embodiment, and may be formed in a triangular shape.

<變形例3> <Modification 3>

其次，說明有關本實施形態1的變形例3。圖35是表示以本變形例3的下治具BJG來固定晶片搭載部TAB1及晶片搭載部TAB2的狀態的模式圖。如圖35所示般，凸部CVX1的平面形狀或凸部CVX2的平面形狀是不限於實施形態1那樣的圓形形狀，亦可為長方形形狀或正方形形狀等的矩形形狀。 Next, a modification 3 of the first embodiment will be described. FIG. 35 is a schematic view showing a state in which the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are fixed by the lower fixture BJG of the third modification. As shown in FIG. 35, the planar shape of the convex portion CVX1 or the planar shape of the convex portion CVX2 is not limited to the circular shape as in the first embodiment, and may be a rectangular shape such as a rectangular shape or a square shape.

<變形例4> <Modification 4>

其次，說明有關本實施形態1的變形例4。圖36是表示以本變形例4的下治具BJG來固定晶片搭載部TAB1及晶片搭載部TAB2的狀態的模式圖。如圖36所示般，例如，若著眼於晶片搭載部TAB1，則如圖36所示般，以在晶片搭載部TAB1的側面SSF5不設缺口部，將凸部CVX1推壓於側面SSF5的方式構成，且亦可以在晶片搭 載部TAB1的側面SSF6不設缺口部，將凸部CVX1推壓於側面SSF6的方式構成。 Next, a modification 4 of the first embodiment will be described. FIG. 36 is a schematic view showing a state in which the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are fixed by the lower fixture BJG of the fourth modification. As shown in FIG. 36, for example, when the wafer mounting portion TAB1 is focused on, the side surface SSF5 of the wafer mounting portion TAB1 is not provided with a notch portion, and the convex portion CVX1 is pressed against the side surface SSF5. Composition, and can also be used on the wafer The side surface SSF6 of the carrier portion TAB1 is not provided with a notch portion, and is configured to press the convex portion CVX1 against the side surface SSF6.

同樣，在晶片搭載部TAB2中也如圖36所示般，以在晶片搭載部TAB2的側面SSF7不設缺口部，將凸部CVX2推壓於側面SSF7的方式構成，且以不在晶片搭載部TAB1的側面SSF8設置缺口部，將凸部CVX1推壓於側面SSF8的方式構成。 Similarly, as shown in FIG. 36, the wafer mounting portion TAB2 is configured such that the convex portion CVX2 is pressed against the side surface SSF7 without the notch portion on the side surface SSF7 of the wafer mounting portion TAB2, and the wafer mounting portion TAB1 is not present. The side surface SSF 8 is provided with a notch portion, and the convex portion CVX1 is pressed against the side surface SSF8.

此情況，由於分別在晶片搭載部TAB1及晶片搭載部TAB2未設缺口部，因此可縮小晶片搭載部TAB1及晶片搭載部TAB2的各平面大小。例如，在晶片搭載部TAB1是搭載形成有IGBT的半導體晶片，且在晶片搭載部TAB2是搭載形成有二極體的半導體晶片。因此，分別在晶片搭載部TAB1及晶片搭載部TAB2設有缺口部時，因為需要以不重疊缺口部及半導體晶片的方式配置，所以晶片搭載部TAB1及晶片搭載部TAB2的各平面大小是形成缺口部的部分變大。 In this case, since the chip mounting portion TAB1 and the wafer mounting portion TAB2 are not provided with the notch portions, the respective plane sizes of the wafer mounting portion TAB1 and the wafer mounting portion TAB2 can be reduced. For example, a semiconductor wafer in which an IGBT is formed is mounted on the wafer mounting portion TAB1, and a semiconductor wafer in which a diode is formed is mounted on the wafer mounting portion TAB2. Therefore, when the chip mounting portion TAB1 and the wafer mounting portion TAB2 are provided with the notch portions, it is necessary to arrange the chip portions TAB1 and the wafer mounting portion TAB2 so as not to overlap the notch portions and the semiconductor wafer. The part of the department has become larger.

相對於此，如本變形例4般，分別在晶片搭載部TAB1及晶片搭載部TAB2不設缺口部時，不須確保分別在晶片搭載部TAB1及晶片搭載部TAB2形成缺口部的領域。基於此情形，若根據本變形例4，則可更縮小晶片搭載部TAB1及晶片搭載部TAB2的各平面大小。 On the other hand, in the case where the chip mounting portion TAB1 and the wafer mounting portion TAB2 are not provided with the notch portion, it is not necessary to secure a region in which the chip mounting portion TAB1 and the wafer mounting portion TAB2 form a notch portion. In this case, according to the fourth modification, the plane sizes of the wafer mounting portion TAB1 and the wafer mounting portion TAB2 can be further reduced.

<變形例5> <Modification 5>

在本實施形態1是舉晶片搭載部TAB1的平面形狀與 晶片搭載部TAB2的平面形狀為同一形狀時為例進行說明，但本實施形態1的技術思想是不限於此，例如亦可適用在晶片搭載部TAB1的橫方向的寬度(x方向的寬度)與晶片搭載部TAB2的橫方向的寬度(x方向的寬度)為不同的構成，或晶片搭載部TAB1的縱方向的寬度(y方向的寬度)與晶片搭載部TAB2的縱方向的寬度(y方向的寬度)為不同的構成。 In the first embodiment, the planar shape of the wafer mounting portion TAB1 is In the case where the planar shape of the wafer mounting portion TAB2 is the same shape, the technical concept of the first embodiment is not limited thereto. For example, the width of the wafer mounting portion TAB1 in the lateral direction (width in the x direction) and the width of the wafer mounting portion TAB1 may be applied. The width of the wafer mounting portion TAB2 in the lateral direction (the width in the x direction) is different, or the width of the wafer mounting portion TAB1 in the vertical direction (the width in the y direction) and the width of the wafer mounting portion TAB2 in the longitudinal direction (the y direction). Width) is a different composition.

(實施形態2) (Embodiment 2)

本實施形態2是說明有關將接觸於彼此分離的晶片搭載部TAB1與晶片搭載部TAB2的雙方的共通凸部設於下治具BJG的技術思想。 In the second embodiment, the technical idea of providing the common convex portion of the wafer mounting portion TAB1 and the wafer mounting portion TAB2 that are in contact with each other in the lower jig BJG is described.

<實施形態2的特徵> <Features of Embodiment 2>

圖37是表示以本實施形態2的下治具BJG來固定晶片搭載部TAB1及晶片搭載部TAB2的狀態的模式圖。如圖37所示般，晶片搭載部TAB1是形成矩形形狀，具有角部CNR1A~CNR1D。同樣，晶片搭載部TAB2是形成矩形形狀，具有角部CNR2A~CNR2D。 FIG. 37 is a schematic view showing a state in which the wafer mounting portion TAB1 and the wafer mounting portion TAB2 are fixed by the lower fixture BJG of the second embodiment. As shown in FIG. 37, the wafer mounting portion TAB1 has a rectangular shape and has corner portions CNR1A to CNR1D. Similarly, the wafer mounting portion TAB2 has a rectangular shape and has corner portions CNR2A to CNR2D.

在此，如圖37所示般，下治具BJG是具有凸部CVX1、凸部CVX2及共通凸部CVX。而且，在晶片搭載部TAB1的角部CNR1A及角部CNR1D分別設有缺口部，凸部CVX1會被嵌入至設在角部CNR1A的缺口部，且共通凸部CVX會被嵌入至設在角部CNR1D的缺口部。 另一方面，在晶片搭載部TAB2的角部CNR2B及角部CNR2C分別設有缺口部，共通凸部CVX會被嵌入至設在角部CNR2B的缺口部，且凸部CVX2會被嵌入至設在角部CNR2C的缺口部。 Here, as shown in FIG. 37, the lower fixture BJG has a convex portion CVX1, a convex portion CVX2, and a common convex portion CVX. Further, a notch portion is provided in each of the corner portion CNR1A and the corner portion CNR1D of the wafer mounting portion TAB1, and the convex portion CVX1 is fitted into the notch portion provided at the corner portion CNR1A, and the common convex portion CVX is embedded in the corner portion. The notch of the CNR1D. On the other hand, the corner portion CNR2B and the corner portion CNR2C of the wafer mounting portion TAB2 are respectively provided with cutout portions, and the common convex portion CVX is fitted into the notch portion provided at the corner portion CNR2B, and the convex portion CVX2 is embedded in the projection portion CVX2. The notch of the corner CNR2C.

本實施形態2的特徵點是如圖37所示般，將接觸於彼此分離的晶片搭載部TAB1及晶片搭載部TAB2的雙方之共通凸部CVX設在下治具BJG的點。具體而言，共通凸部CVX會被嵌入至設在晶片搭載部TAB1的角部CNR1D之缺口部及設在晶片搭載部TAB2的角部CNR2B之缺口部的雙方。 In the second embodiment, as shown in FIG. 37, the common convex portion CVX of the wafer mounting portion TAB1 and the wafer mounting portion TAB2 that are in contact with each other are provided at the point of the lower jig BJG. Specifically, the common convex portion CVX is fitted into both the notch portion of the corner portion CNR1D provided in the wafer mounting portion TAB1 and the notch portion provided at the corner portion CNR2B of the wafer mounting portion TAB2.

亦即，本實施形態2是將晶片搭載部TAB1的側面SSF2的一端部側的角部CNR1D推壓於共有凸部CVX，且將位於與晶片搭載部TAB1的角部CNR1D對角線上的角部CNR1A推壓於凸部CVX1，藉此將晶片搭載部TAB1定位於下治具BJG的主面上。並且，本實施形態2是將晶片搭載部TAB2的側面SSF3的一端部側的角部CNR2B，亦即將與角部CNR1D對向的角部CNR2B推壓於共有凸部CVX，且將位於與晶片搭載部TAB2的角部CNR2B對角線上的角部CNR2C推壓於凸部CVX2，藉此將晶片搭載部TAB2定位於治具BJG的主面上。 In the second embodiment, the corner portion CNR1D on the one end side of the side surface SSF2 of the wafer mounting portion TAB1 is pressed against the common convex portion CVX, and is located at a corner on the diagonal line with the corner CNR1D of the wafer mounting portion TAB1. The CNR 1A is pressed against the convex portion CVX1, whereby the wafer mounting portion TAB1 is positioned on the main surface of the lower jig BJG. In the second embodiment, the corner portion CNR2B on the one end side of the side surface SSF3 of the wafer mounting portion TAB2, that is, the corner portion CNR2B facing the corner portion CNR1D is pressed against the common convex portion CVX, and is placed on the wafer. The corner portion CNR2C on the diagonal CNR2B of the portion TAB2 is pressed against the convex portion CVX2, whereby the wafer mounting portion TAB2 is positioned on the main surface of the jig BJG.

如此，本實施形態2是採用接觸於晶片搭載部TAB1及晶片搭載部TAB2的雙方之共通凸部CVX，不是在彼此分離的晶片搭載部TAB1及晶片搭載部TAB2中，使個別的凸部接觸分別接觸於彼此對向的晶片搭載部 TAB1的側面SSF2及晶片搭載部TAB2的側面SSF3。藉此，若根據本實施形態2，則縮小彼此對向的晶片搭載部TAB1的側面SSF2與晶片搭載部TAB2的側面SSF3之間的距離L。亦即，若根據本實施形態2，則藉由使對應於彼此對向的晶片搭載部TAB1的側面SSF2之凸部及對應於晶片搭載部TAB2的側面SSF3之凸部共有化的技術思想，可一邊謀求晶片搭載部TAB1及晶片搭載部TAB2的定位精度的提升，一邊謀求半導體裝置的小型化。 In the second embodiment, the common convex portion CVX that is in contact with both the wafer mounting portion TAB1 and the wafer mounting portion TAB2 is used, and the individual convex portions are not in contact with each other in the wafer mounting portion TAB1 and the wafer mounting portion TAB2. Contact with each other on the wafer mounting portion The side surface SSF2 of the TAB1 and the side surface SSF3 of the wafer mounting portion TAB2. As a result, according to the second embodiment, the distance L between the side surface SSF2 of the wafer mounting portion TAB1 facing each other and the side surface SSF3 of the wafer mounting portion TAB2 is reduced. In other words, according to the second embodiment, the convex portion of the side surface SSF2 of the wafer mounting portion TAB1 facing each other and the convex portion corresponding to the side surface SSF3 of the wafer mounting portion TAB2 can be shared. The semiconductor device is reduced in size while improving the positioning accuracy of the wafer mounting portion TAB1 and the wafer mounting portion TAB2.

另外，例如圖38所示般，在本實施形態2所使用的下治具BJG是亦可作為固定1個大的晶片搭載部TAB的定位治具使用。 Further, for example, as shown in FIG. 38, the lower fixture BJG used in the second embodiment can be used as a positioning jig for fixing one large wafer mounting portion TAB.

亦即，本實施形態2的下治具BJG是基本上假想使用在具有如圖37所示那樣彼此分離的2個晶片搭載部之SR馬達專用的半導體裝置的製造工程。然後，藉由在如此的用途使用本實施形態2的下治具BJG，可取得一邊謀求晶片搭載部TAB1及晶片搭載部TAB2的定位精度的提升，一邊能實現半導體裝置的小型化之效果。 In other words, the lower fixture BJG of the second embodiment is a manufacturing process of a semiconductor device exclusively for SR motors having two wafer mounting portions separated as shown in FIG. By using the lower fixture BJG of the second embodiment in the above-described manner, it is possible to achieve an effect of reducing the size of the semiconductor device while improving the positioning accuracy of the wafer mounting portion TAB1 and the wafer mounting portion TAB2.

但，本實施形態2的下治具BJG是不僅上述SR馬達專用的半導體裝置的製造工程，例如，亦可適用在具有1個晶片搭載部的PM馬達用的半導體裝置的製造工程。 However, the lower fixture BJG of the second embodiment is a manufacturing process of a semiconductor device for a PM motor having one wafer mounting portion, for example.

以上，本實施形態2的下治具BJG是不僅可使用在具有彼此分離的2個晶片搭載部之半導體裝置的製造工程，在具有1個晶片搭載部之半導體裝置的製造工程 也可使用，因此可為泛用性佳的定位治具。亦即，若根據本實施形態2，則亦可取得能夠提供泛用性佳的定位治具之優點。 As described above, the lower fixture BJG of the second embodiment is a manufacturing process of a semiconductor device having one wafer mounting portion, not only in a manufacturing process of a semiconductor device having two wafer mounting portions separated from each other. It can also be used, so it can be a general-purpose positioning fixture. In other words, according to the second embodiment, it is possible to obtain the advantage of providing a positioning fixture having excellent versatility.

<角部的定義> <Definition of Corners>

最後，說明有關在本實施形態2使用的「角部」的定義。在本說明書所謂的「角部」是平面視，定義為晶片搭載部的一側面與和此一側面交叉的交叉側面的交點。以下，具體說明有關「角部」。 Finally, the definition of the "corner portion" used in the second embodiment will be described. The "corner portion" as used herein refers to a plan view and is defined as the intersection of one side surface of the wafer mounting portion and the intersecting side surface intersecting the one side surface. Hereinafter, the "corner" will be specifically described.

例如圖37所示般，在晶片搭載部TAB1是存在角部CNR1A~CNR1D，但例如若著眼於角部CNR1A，則所謂「角部CNR1A」是平面視，定義為側面SSF1與側面SSF5的交點。同樣，所謂「角部CNR1D」是平面視，定義為側面SSF2與側面SSF6的交點。而且，在本說明書所謂「對應於角部的凸部」是平面視，意味在境界線上或內部包含「角部」的凸部。例如，在圖37中，所謂「對應於角部CNR1A的凸部」是解釋為包含側面SSF1與側面SSF5的交點之凸部CVX1。同樣，所謂「對應於角部CNR1D及角部CNR2B的凸部」是解釋為包含側面SSF2與側面SSF6的交點，且包含側面SSF3與側面SSF8的交點之共通凸部CVX。 For example, as shown in FIG. 37, the wafer mounting portion TAB1 has the corner portions CNR1A to CNR1D. However, for example, when focusing on the corner portion CNR1A, the "corner portion CNR1A" is a plan view and is defined as the intersection of the side surface SSF1 and the side surface SSF5. Similarly, the "corner CNR1D" is a plane view and is defined as the intersection of the side surface SSF2 and the side surface SSF6. Further, in the present specification, the "convex portion corresponding to the corner portion" is a plan view, and means a convex portion including a "corner portion" on the boundary line or inside. For example, in FIG. 37, the "convex portion corresponding to the corner portion CNR1A" is a convex portion CVX1 which is interpreted to include the intersection of the side surface SSF1 and the side surface SSF5. Similarly, the "convex portion corresponding to the corner portion CNR1D and the corner portion CNR2B" is a common convex portion CVX that is interpreted as including an intersection of the side surface SSF2 and the side surface SSF6 and including an intersection of the side surface SSF3 and the side surface SSF8.

如此，在本說明書中，定義「對應於角部的凸部」的意圖是在於使例如圖39所示的共通凸部CVX從「對應於角部的凸部」除外的情形明確化。亦即，圖39 所示的共通凸部CVX是因為未含任何的「角部(交點)」，所以從本說明書所定義的「對應於角部的凸部」除外。 As described above, in the present specification, the definition of "the convex portion corresponding to the corner portion" is intended to clarify the case where the common convex portion CVX shown in FIG. 39 is excluded from the "convex portion corresponding to the corner portion". That is, Figure 39 Since the common convex portion CVX is shown as not including any "corner portion (intersection point)", "the convex portion corresponding to the corner portion" defined in the present specification is excluded.

在此，將圖39所示的共通凸部CVX從本實施形態2的技術思想除外的意圖是因為雖圖39所示的共通凸部CVX可縮小晶片搭載部TAB1的側面SSF2與晶片搭載部TAB2的側面SSF3之間的距離，但會妨礙在晶片搭載部TAB1上及晶片搭載部TAB2上搭載半導體晶片。亦即，就圖39所示的共通凸部CVX而言，在晶片搭載部TAB1的中央部附近及晶片搭載部TAB2的中央部附近形成有缺口部。此結果，就圖39所示的共通凸部CVX而言，因為會產生無法在晶片搭載部TAB1上或晶片搭載部TAB2上搭載半導體晶片的死空間，晶片搭載部TAB1的平面大小或晶片搭載部TAB2的平面大小會增大，所以結果難以謀求半導體裝置的小型化。 Here, the common convex portion CVX shown in FIG. 39 is excluded from the technical idea of the second embodiment because the common convex portion CVX shown in FIG. 39 can reduce the side surface SSF2 of the wafer mounting portion TAB1 and the wafer mounting portion TAB2. The distance between the side surface SSFs 3 prevents the semiconductor wafer from being mounted on the wafer mounting portion TAB1 and the wafer mounting portion TAB2. In other words, in the common convex portion CVX shown in FIG. 39, a notch portion is formed in the vicinity of the central portion of the wafer mounting portion TAB1 and in the vicinity of the central portion of the wafer mounting portion TAB2. As a result, in the common convex portion CVX shown in FIG. 39, a dead space in which the semiconductor wafer cannot be mounted on the wafer mounting portion TAB1 or the wafer mounting portion TAB2 is generated, and the wafer mounting portion TAB1 has a planar size or a wafer mounting portion. The planar size of TAB2 is increased, so that it is difficult to reduce the size of the semiconductor device.

以上，根據實施形態來具體說明本發明者所研發的發明，但本發明並非限於前述實施形態，亦可在不脫離其要旨的範圍實施各種變更。 The invention developed by the inventors of the present invention has been specifically described above, but the present invention is not limited to the embodiments described above, and various modifications may be made without departing from the spirit and scope of the invention.

前述實施形態是包含以下的形態。 The above embodiment includes the following aspects.

(附記1) (Note 1)

一種半導體裝置的製造方法，係具有：(a)在具有形成有複數的凸部的第1主面之第1治具的前述第1主面上配置第1晶片搭載部及第2晶片搭載 部之工程；(b)在前述第1晶片搭載部上搭載第1半導體晶片，在前述第2晶片搭載部上搭載第2半導體晶片之工程；(c)前述(b)工程之後，在前述第1治具的前述第1主面上配置具有複數的導線的導線架之工程；(d)經由第1導電性構件來電性連接前述第1半導體晶片的第1電極焊墊與前述導線架的第1導線，經由第2導電性構件來電性連接前述第2半導體晶片的第2電極焊墊與前述導線架的第2導線之工程；及(e)以樹脂來密封前述第1半導體晶片、前述第2半導體晶片、前述第1晶片搭載部的一部分、前述第2晶片搭載部的一部分、前述第1導線的一部分、及前述第2導線的一部分，藉此形成密封體之工程，又，前述第1晶片搭載部係具有：搭載有前述第1半導體晶片的第1上面；前述第1上面的相反側的面之第1下面；在其厚度方向，位於前述第1上面與前述第1下面之間的第1側面；及與前述第1側面對向的第2側面，又，前述第2晶片搭載部係具有：搭載有前述第2半導體晶片的第2上面；前述第2上面的相反側的面之第2下面；在其厚度方向，位於前述第2上面與前述第2下面之 間的第3側面；及與前述第3側面對向的第4側面，前述(a)工程係包含：前述複數的凸部係包含第1凸部、第2凸部及共有凸部，前述(a)工程係包含：(a1)以前述第1晶片搭載部的前述第2側面與前述第2晶片搭載部的前述第3側面能夠對向的方式，將前述第1晶片搭載部及前述第2晶片搭載部配置於前述第1治具的前述第1主面上之工程；及(a2)將前述第1晶片搭載部的前述第2側面的一端部側的第1角部推壓於前述共有凸部，且將位於與前述第1晶片搭載部的前述第1角部對角線上的第2角部推壓於前述第1凸部，藉此將前述第1晶片搭載部定位於前述第1治具的前述第1主面上，並將前述第2晶片搭載部的前述第3側面的一端部側的第3角部，亦即將與前述第1角部對向的前述第3角部推壓於前述共有凸部，且將位於與前述第2晶片搭載部的前述第3角部對角線上的第4角部推壓於前述第2凸部，藉此將前述第2晶片搭載部定位於前述第1治具的前述第1主面上之工程。 A method of manufacturing a semiconductor device includes: (a) arranging a first wafer mounting portion and a second wafer mounting on the first main surface of a first jig having a first main surface on which a plurality of convex portions are formed (b) the first semiconductor wafer is mounted on the first wafer mounting portion, and the second semiconductor wafer is mounted on the second wafer mounting portion; (c) after the (b) project, (1) a process of arranging a lead frame having a plurality of wires on the first main surface of the jig; (d) electrically connecting the first electrode pad of the first semiconductor wafer and the lead frame via the first conductive member a lead wire electrically connecting the second electrode pad of the second semiconductor wafer and the second wire of the lead frame via a second conductive member; and (e) sealing the first semiconductor wafer with a resin, and the first a semiconductor wafer, a part of the first wafer mounting portion, a part of the second wafer mounting portion, a part of the first conductive wire, and a part of the second conductive wire, thereby forming a sealing body, and the first The wafer mounting portion has a first upper surface on which the first semiconductor wafer is mounted, a first lower surface on a surface opposite to the first upper surface, and a first surface between the first upper surface and the first lower surface in a thickness direction thereof. First side; and In the second side surface facing the first side surface, the second wafer mounting portion has a second upper surface on which the second semiconductor wafer is mounted, and a second lower surface on a surface opposite to the second upper surface; The thickness direction is located on the second upper surface and the second lower surface The third side surface and the fourth side surface facing the third side surface, wherein the (a) part of the system includes the first convex portion, the second convex portion, and the common convex portion, the a) The system includes: (a1) the first wafer mounting portion and the second portion, wherein the second side surface of the first wafer mounting portion and the third side surface of the second wafer mounting portion are opposite to each other The wafer mounting portion is disposed on the first main surface of the first jig; and (a2) the first corner portion on the one end side of the second side surface of the first wafer mounting portion is pressed against the common The convex portion and the second corner portion on the diagonal line of the first corner portion of the first wafer mounting portion are pressed against the first convex portion, thereby positioning the first wafer mounting portion on the first portion The third main surface on the one end side of the third side surface of the second wafer mounting portion, that is, the third corner portion facing the first corner portion, is pushed on the first main surface of the jig Pressing the common convex portion and pressing the fourth corner portion on the diagonal line of the third corner portion of the second wafer mounting portion to the second portion The convex portion is configured to position the second wafer mounting portion on the first main surface of the first jig.

(附記2) (Note 2)

在附記1所記載的半導體裝置的製造方法中，在前述第1角部形成有對應於前述共有凸部的第1缺 口部，在前述第3角部形成有對應於前述共有凸部的第2缺口部，前述(a2)工程，係將前述第1缺口部推壓於前述共有凸部，藉此將前述第1晶片搭載部定位於前述第1治具的前述第1主面上，且將前述第2缺口部推壓於前述共有凸部，藉此將前述第2晶片搭載部定位於前述第1治具的前述第1主面上。 In the method of manufacturing a semiconductor device according to the first aspect, the first corner portion is formed with a first defect corresponding to the common convex portion. In the mouth portion, a second notch portion corresponding to the common convex portion is formed in the third corner portion, and the (a2) project is to press the first notch portion against the common convex portion, thereby the first portion The wafer mounting portion is positioned on the first main surface of the first jig, and the second notch portion is pressed against the common convex portion, thereby positioning the second wafer mounting portion on the first jig The first main surface.

SSF1、SSF2、SSF3、SSF4、SSF5、SSF6、SSF7、SSF8‧‧‧側面 SSF1, SSF2, SSF3, SSF4, SSF5, SSF6, SSF7, SSF8‧‧‧ side

CVX1、CVX2、CVX3‧‧‧凸部 CVX1, CVX2, CVX3‧‧‧ convex

CS1、CS2‧‧‧缺口部 CS1, CS2‧‧‧ gap

TAB1、TAB2‧‧‧晶片搭載部 TAB1, TAB2‧‧‧ Wafer Loading Department

BJG‧‧‧下治具 BJG‧‧‧ lower fixture

Claims (12)

一種半導體裝置的製造方法，其特徵係具有：(a)在具有形成有複數的凸部的第1主面之第1治具的前述第1主面上配置第1晶片搭載部及第2晶片搭載部之工程；(b)在前述第1晶片搭載部上搭載第1半導體晶片，在前述第2晶片搭載部上搭載第2半導體晶片之工程；(c)前述(b)工程之後，在前述第1治具的前述第1主面上配置具有複數的導線的導線架之工程；(d)經由第1導電性構件來電性連接前述第1半導體晶片的第1電極焊墊與前述導線架的第1導線，經由第2導電性構件來電性連接前述第2半導體晶片的第2電極焊墊與前述導線架的第2導線之工程；及(e)以樹脂來密封前述第1半導體晶片、前述第2半導體晶片、前述第1晶片搭載部的一部分、前述第2晶片搭載部的一部分、前述第1導線的一部分、及前述第2導線的一部分，藉此形成密封體之工程，又，前述第1晶片搭載部係具有：搭載有前述第1半導體晶片的第1上面；前述第1上面的相反側的面之第1下面；在其厚度方向，位於前述第1上面與前述第1下面之間的第1側面；及與前述第1側面對向的第2側面， 又，前述第2晶片搭載部係具有：搭載有前述第2半導體晶片的第2上面；前述第2上面的相反側的面之第2下面；在其厚度方向，位於前述第2上面與前述第2下面之間的第3側面；及與前述第3側面對向的第4側面，前述(a)工程係包含：(a1)以前述第1晶片搭載部的前述第2側面與前述第2晶片搭載部的前述第3側面能夠對向的方式，將前述第1晶片搭載部及前述第2晶片搭載部配置於前述第1治具的前述第1主面上之工程；及(a2)將前述第1晶片搭載部的前述第2側面以外的複數的側面分別推壓於複數的第1凸部，藉此將前述第1晶片搭載部定位於前述第1治具的前述第1主面上，且將前述第2晶片搭載部的前述第3側面以外的複數的側面分別推壓於複數的第2凸部，藉此將前述第2晶片搭載部定位於前述第1治具的前述第1主面上之工程。 A method of manufacturing a semiconductor device, comprising: (a) arranging a first wafer mounting portion and a second wafer on the first main surface of a first jig having a first main surface on which a plurality of convex portions are formed; (b) the first semiconductor wafer is mounted on the first wafer mounting portion, and the second semiconductor wafer is mounted on the second wafer mounting portion; (c) after the above (b) engineering, a first lead surface of the first jig is provided with a lead frame having a plurality of wires; (d) a first electrode pad of the first semiconductor wafer and the lead frame are electrically connected via a first conductive member a first lead wire electrically connecting a second electrode pad of the second semiconductor wafer and a second lead wire of the lead frame via a second conductive member; and (e) sealing the first semiconductor wafer with a resin, and the a second semiconductor wafer, a part of the first wafer mounting portion, a part of the second wafer mounting portion, a part of the first conductive wire, and a part of the second conductive wire, thereby forming a sealing body, and the 1 wafer mounting part has a first upper surface on which the first semiconductor wafer is mounted, a first lower surface on a surface opposite to the first upper surface, and a first side surface located between the first upper surface and the first lower surface in a thickness direction thereof; The second side opposite to the first side surface, Further, the second wafer mounting portion has a second upper surface on which the second semiconductor wafer is mounted, a second lower surface on a surface opposite to the second upper surface, and a second upper surface and the second surface in the thickness direction thereof. a third side surface between the lower side and a fourth side surface facing the third side surface, wherein the (a) aspect of the invention includes: (a1) the second side surface of the first wafer mounting portion and the second wafer a configuration in which the first wafer mounting portion and the second wafer mounting portion are disposed on the first main surface of the first jig, and the aforesaid third side surface of the mounting portion is opposite to each other; and (a2) The plurality of side surfaces other than the second side surface of the first wafer mounting portion are pressed against the plurality of first convex portions, whereby the first wafer mounting portion is positioned on the first main surface of the first jig, The plurality of side surfaces other than the third side surface of the second wafer mounting portion are respectively pressed against the plurality of second convex portions, whereby the second wafer mounting portion is positioned in the first main body of the first jig Engineering on the surface. 如申請專利範圍第1項之半導體裝置的製造方法，其中，前述第1晶片搭載部及前述第2晶片搭載部的各平面形狀為四角形形狀，前述第1晶片搭載部係具有：與前述第1側面及前述第2側面交叉，彼此對向的第5側面及第6側面，前述第2晶片搭載部係具有：與前述第3側面及前述第4側面交叉，彼此對向的第7側面及第8側面， 在前述(a2)工程中，前述複數的第1凸部只接觸於前述第5側面及前述第6側面，前述複數的第2凸部只接觸於前述第7側面及前述第8側面。 The method of manufacturing a semiconductor device according to the first aspect of the invention, wherein the first wafer mounting portion and the second wafer mounting portion have a quadrangular shape, and the first wafer mounting portion has the first wafer mounting portion The second wafer mounting portion having the side surface and the second side surface intersecting each other and the second wafer mounting portion have a seventh side surface and a fourth side surface that intersect with the third side surface and the fourth side surface 8 sides, In the above (a2), the plurality of first convex portions are in contact only with the fifth side surface and the sixth side surface, and the plurality of second convex portions are in contact only with the seventh side surface and the eighth side surface. 如申請專利範圍第2項之半導體裝置的製造方法，其中，在前述第1晶片搭載部的前述第5側面及前述第6側面，係形成有分別對應於前述複數的第1凸部之第1缺口部，在前述第2晶片搭載部的前述第7側面及前述第8側面，係形成有分別對應於前述複數的第2凸部之第2缺口部。 The method of manufacturing a semiconductor device according to the second aspect of the invention, wherein the first side surface and the sixth side surface of the first wafer mounting portion are respectively formed with a first one corresponding to the plurality of first convex portions In the notch portion, the second notch portion corresponding to each of the plurality of second convex portions is formed on the seventh side surface and the eighth side surface of the second wafer mounting portion. 如申請專利範圍第3項之半導體裝置的製造方法，其中，前述第1缺口部，係到達前述第1晶片搭載部的前述第1上面及前述第1下面，前述第2缺口部，係到達前述第2晶片搭載部的前述第2上面及前述第2下面。 The method of manufacturing a semiconductor device according to the third aspect of the invention, wherein the first notch portion reaches the first upper surface and the first lower surface of the first wafer mounting portion, and the second notch portion reaches the aforementioned The second upper surface and the second lower surface of the second wafer mounting portion. 如申請專利範圍第3項之半導體裝置的製造方法，其中，前述第1缺口部，係未到達前述第1晶片搭載部的前述第1上面，僅到達前述第1下面，前述第2缺口部，係未到達前述第2晶片搭載部的前述第2上面，僅到達前述第2下面。 The method of manufacturing a semiconductor device according to the third aspect of the invention, wherein the first notch portion does not reach the first upper surface of the first wafer mounting portion, and only reaches the first lower surface, the second notched portion, The second upper surface of the second wafer mounting portion is not reached, and only the second lower surface is reached. 如申請專利範圍第5項之半導體裝置的製造方法， 其中，前述第1晶片搭載部的前述第1上面的面積，係比從前述密封體露出的前述第1下面的面積更大，前述第2晶片搭載部的前述第2上面的面積，係比從前述密封體露出的前述第2下面的面積更大。 A method of manufacturing a semiconductor device according to claim 5, The area of the first upper surface of the first wafer mounting portion is larger than the area of the first lower surface exposed from the sealing body, and the area of the second upper surface of the second wafer mounting portion is The area of the second lower surface in which the sealing body is exposed is larger. 如申請專利範圍第1項之半導體裝置的製造方法，其中，前述第1晶片搭載部的前述第1上面的平面形狀為長方形形狀，前述第2晶片搭載部的前述第2上面的平面形狀為長方形形狀，前述第1晶片搭載部的前述第1側面為包含前述第1上面的第1長邊之側面，前述第1晶片搭載部的前述第2側面為包含前述第1上面的第2長邊之側面，前述第2晶片搭載部的前述第3側面為包含前述第2上面的第3長邊之側面，前述第2晶片搭載部的前述第4側面為包含前述第2上面的第4長邊之側面。 The method of manufacturing a semiconductor device according to the first aspect of the invention, wherein the first upper surface of the first wafer mounting portion has a rectangular shape, and the second upper surface of the second wafer mounting portion has a rectangular shape. In the shape, the first side surface of the first wafer mounting portion is a side surface including the first upper surface of the first upper surface, and the second side surface of the first wafer mounting portion is a second long side including the first upper surface In the side surface, the third side surface of the second wafer mounting portion is a side surface including the second upper side of the second upper surface, and the fourth side surface of the second wafer mounting portion is a fourth long side including the second upper surface side. 如申請專利範圍第7項之半導體裝置的製造方法，其中，在包含前述第1上面的第1短邊之第5側面及包含前述第1上面的第2短邊之第6側面分別至少形成有對應於前述複數的第1凸部之中的1個第1凸部之1個的第1缺 口部，在包含前述第2上面的第3短邊之第7側面及包含前述第2上面的第4短邊之第8側面分別至少形成有對應於前述複數的第2凸部之中的1個第2凸部之1個的第2缺口部。 The method of manufacturing a semiconductor device according to claim 7, wherein at least a fifth side surface including the first short side of the first upper surface and a sixth side surface including the second short side of the first upper surface are formed at least The first defect corresponding to one of the first convex portions among the plurality of first convex portions The mouth portion is formed with at least one of the second convex portions corresponding to the plurality of the seventh convex portions including the seventh short side of the second upper surface and the eighth short side including the second upper short side. The second notch of one of the second convex portions. 如申請專利範圍第8項之半導體裝置的製造方法，其中，形成於前述第5側面的前述第1缺口部與形成於前述第6側面的前述第1缺口部之間的直線距離，係比前述第1上面的前述第1長邊的長度更長，形成於前述第7側面的前述第2缺口部與形成於前述第8側面的前述第2缺口部之間的直線距離，係比前述第2上面的前述第3長邊的長度更長。 The method of manufacturing a semiconductor device according to the eighth aspect of the invention, wherein the linear distance between the first notch portion formed on the fifth side surface and the first notch portion formed on the sixth side surface is greater than The length of the first long side of the first upper surface is longer, and the linear distance between the second notch portion formed on the seventh side surface and the second notch portion formed on the eighth side surface is longer than the second The length of the aforementioned third long side is longer. 如申請專利範圍第1項之半導體裝置的製造方法，其中，前述(b)工程係包含：(b1)以能夠位於比前述第1晶片搭載部的第1上面及前述第2晶片搭載部的第2上面更上方的方式，將印刷遮罩配置於前述第1治具的前述第1主面上之工程；(b2)在前述印刷遮罩的表面，藉由刮刀來擠壓導電性接著材，從形成於前述印刷遮罩內的開口部供給前述導電性接著材至前述第1晶片搭載部的前述第1上面及前述第2晶片搭載部的前述第2上面之工程；及(b3)在前述第1晶片搭載部的前述第1上面上，經由前述導電性接著材來搭載前述第1半導體晶片，在前述 第2晶片搭載部的前述第2上面上，經由前述導電性接著材來搭載前述第2半導體晶片之工程，在前述第1治具的前述第1主面上，於前述複數的第1凸部及前述複數的第2凸部的周圍形成有第3凸部，以前述第1主面作為基準面時，前述第3凸部的高度，係比前述複數的第1凸部及前述複數的第2凸部的各高度高，且比前述第1晶片搭載部的前述第1上面的高度及前述第2晶片搭載部的前述第2上面的高度低，前述(b1)工程，係以使前述印刷遮罩的背面與前述第1晶片搭載部的前述第1上面及前述第2晶片搭載部的前述第2上面接觸，與前述第3凸部成為保持間隙的狀態之方式，將前述印刷遮罩配置於前述第1治具的前述第1主面上，前述第3凸部的高度，係於前述(b2)工程中，成為前述刮刀會通過前述第3凸部上，前述印刷遮罩彎曲時前述印刷遮罩的前述背面會與前述第3凸部接觸的高度。 The method of manufacturing a semiconductor device according to the first aspect of the invention, wherein the (b) engineering system includes: (b1) the first upper surface of the first wafer mounting portion and the second wafer mounting portion 2 above, the printing mask is disposed on the first main surface of the first jig; (b2) the conductive adhesive is extruded on the surface of the printing mask by a doctor blade. Supplying the conductive adhesive to the second upper surface of the first upper surface and the second wafer mounting portion of the first wafer mounting portion from the opening formed in the printing mask; and (b3) The first semiconductor wafer is mounted on the first upper surface of the first wafer mounting portion via the conductive adhesive material. The second semiconductor wafer is mounted on the second upper surface of the second wafer mounting portion via the conductive bonding material, and the first main surface of the first jig is on the first main surface of the first jig a third convex portion is formed around the plurality of second convex portions, and when the first main surface is used as a reference surface, the height of the third convex portion is higher than the plurality of first convex portions and the plurality of The height of each of the convex portions is higher than the height of the first upper surface of the first wafer mounting portion and the height of the second upper surface of the second wafer mounting portion, and the (b1) engineering is to perform the printing. The back surface of the mask is in contact with the first upper surface of the first wafer mounting portion and the second upper surface of the second wafer mounting portion, and the printing mask is disposed so that the third protruding portion is in a state of maintaining a gap therebetween. In the first main surface of the first jig, the height of the third convex portion is the same as in the above (b2), when the blade passes through the third convex portion, and the printing mask is bent. The aforementioned back surface of the printing mask is in contact with the third convex portion height. 如申請專利範圍第10項之半導體裝置的製造方法，其中，前述導電性接著材為焊錫膏。 The method of manufacturing a semiconductor device according to claim 10, wherein the conductive adhesive is a solder paste. 如申請專利範圍第1項之半導體裝置的製造方法，其中，前述(c)工程係包含：(c1)在前述第1治具的前述第1主面上，以其第2主面能夠對向的方式配置第2治具之工程；及(c2)在與前述第2治具的前述第2主面相反側的面之第3主面上配置前述導線架之工程， 在前述第2治具的前述第2主面上形成有第4凸部，在前述第2治具的前述第3主面上形成有第5凸部，在前述第1治具的前述第1主面上形成有可插入前述第4凸部的凹部，在前述導線架形成有可插入前述第5凸部的貫通孔，前述凹部、前述第4凸部、及前述第5凸部，係以前述複數的第1凸部之中的1個的第1凸部的位置作為基準設置，前述(c1)工程，係將前述第2治具的前述第4凸部插入至前述第1治具的前述凹部，前述(c2)工程，係將前述第2治具的前述第5凸部插入至前述導線架的前述貫通孔。 The method of manufacturing a semiconductor device according to the first aspect of the invention, wherein the (c) engineering system includes: (c1) the first main surface of the first jig, wherein the second main surface can be opposed And arranging the work of the lead frame on the third main surface of the surface opposite to the second main surface of the second jig, and (c2) a fourth convex portion is formed on the second main surface of the second jig, and a fifth convex portion is formed on the third main surface of the second jig, and the first one of the first jig is a concave portion into which the fourth convex portion can be inserted is formed on the main surface, and a through hole through which the fifth convex portion can be inserted is formed in the lead frame, and the concave portion, the fourth convex portion, and the fifth convex portion are The position of the first convex portion of one of the plurality of first convex portions is set as a reference, and in the above (c1), the fourth convex portion of the second jig is inserted into the first jig. In the concave portion, in the above (c2), the fifth convex portion of the second jig is inserted into the through hole of the lead frame.
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